Calculus
7th Edition
ISBN: 9781524916817
Author: SMITH KARL J, STRAUSS MONTY J, TODA MAGDALENA DANIELE
Publisher: Kendall Hunt Publishing
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 6.6, Problem 17PS
To determine
To find: the consumer’s surplus at the point of market equilibrium.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
3.The demand curve of a firm is p=1200- 21q and its total cost is C(q)=2q3 – 66q2 +600q+1000 where q is the output of the firm (in thousands).
Derive an expression R (q ) , for the firm' s revenue function.
(ii) Derive an expression P( q) for the firm' s profit function.
(iii) Is the rate of change of profit increasing or decreasing when the output level of the firm is 10,000 units?
(iv) Determine the level of output at which profit is maximized.
6. In a certain firm, the total production cost function and a demand function are given by the equations
TC = 0.16q³ -0.72q² +2.08q+1.46 and
q=5 -0.5p.
a. Is the demand function one-to-one? Explain your answer. If yes, find its inverse.
b. Find the equation of the function expressing the profit P in terms of the quantity q.
c. Is this profit function one-to-one? If yes, find its inverse. (Hint: use your graphing calculator.)
d. Find q such that P = 6. (Hint: use your graphing calculator.)
If the revenue function for a particular commodity is R(p)
q(p) =
Give a reason for your answer.
q
р
OR = pq
OR=q-p
R = 2²₂
O
O
R =
R = p + q
=
-56p² + 62p, what is the (linear) demand function q(p)?
Chapter 6 Solutions
Calculus
Ch. 6.1 - Prob. 1PSCh. 6.1 - Prob. 2PSCh. 6.1 - Prob. 3PSCh. 6.1 - Prob. 4PSCh. 6.1 - Prob. 5PSCh. 6.1 - Prob. 6PSCh. 6.1 - Prob. 7PSCh. 6.1 - Prob. 8PSCh. 6.1 - Prob. 9PSCh. 6.1 - Prob. 10PS
Ch. 6.1 - Prob. 11PSCh. 6.1 - Prob. 12PSCh. 6.1 - Prob. 13PSCh. 6.1 - Prob. 14PSCh. 6.1 - Prob. 15PSCh. 6.1 - Prob. 16PSCh. 6.1 - Prob. 17PSCh. 6.1 - Prob. 18PSCh. 6.1 - Prob. 19PSCh. 6.1 - Prob. 20PSCh. 6.1 - Prob. 21PSCh. 6.1 - Prob. 22PSCh. 6.1 - Prob. 23PSCh. 6.1 - Prob. 24PSCh. 6.1 - Prob. 25PSCh. 6.1 - Prob. 26PSCh. 6.1 - Prob. 27PSCh. 6.1 - Prob. 28PSCh. 6.1 - Prob. 29PSCh. 6.1 - Prob. 30PSCh. 6.1 - Prob. 31PSCh. 6.1 - Prob. 32PSCh. 6.1 - Prob. 33PSCh. 6.1 - Prob. 34PSCh. 6.1 - Prob. 35PSCh. 6.1 - Prob. 36PSCh. 6.1 - Prob. 37PSCh. 6.1 - Prob. 38PSCh. 6.1 - Prob. 39PSCh. 6.1 - Prob. 40PSCh. 6.1 - Prob. 41PSCh. 6.1 - Prob. 42PSCh. 6.1 - Prob. 43PSCh. 6.1 - Prob. 44PSCh. 6.1 - Prob. 45PSCh. 6.1 - Prob. 46PSCh. 6.1 - Prob. 47PSCh. 6.1 - Prob. 48PSCh. 6.1 - Prob. 49PSCh. 6.1 - Prob. 50PSCh. 6.1 - Prob. 51PSCh. 6.1 - Prob. 52PSCh. 6.1 - Prob. 53PSCh. 6.1 - Prob. 54PSCh. 6.1 - Prob. 55PSCh. 6.1 - Prob. 56PSCh. 6.1 - Prob. 57PSCh. 6.1 - Prob. 58PSCh. 6.1 - Prob. 59PSCh. 6.1 - Prob. 60PSCh. 6.2 - Prob. 1PSCh. 6.2 - Prob. 2PSCh. 6.2 - Prob. 3PSCh. 6.2 - Prob. 4PSCh. 6.2 - Prob. 5PSCh. 6.2 - Prob. 6PSCh. 6.2 - Prob. 7PSCh. 6.2 - Prob. 8PSCh. 6.2 - Prob. 9PSCh. 6.2 - Prob. 10PSCh. 6.2 - Prob. 11PSCh. 6.2 - Prob. 12PSCh. 6.2 - Prob. 13PSCh. 6.2 - Prob. 14PSCh. 6.2 - Prob. 15PSCh. 6.2 - Prob. 16PSCh. 6.2 - Prob. 17PSCh. 6.2 - Prob. 18PSCh. 6.2 - Prob. 19PSCh. 6.2 - Prob. 20PSCh. 6.2 - Prob. 21PSCh. 6.2 - Prob. 22PSCh. 6.2 - Prob. 23PSCh. 6.2 - Prob. 24PSCh. 6.2 - Prob. 25PSCh. 6.2 - Prob. 26PSCh. 6.2 - Prob. 27PSCh. 6.2 - Prob. 28PSCh. 6.2 - Prob. 29PSCh. 6.2 - Prob. 30PSCh. 6.2 - Prob. 31PSCh. 6.2 - Prob. 32PSCh. 6.2 - Prob. 33PSCh. 6.2 - Prob. 34PSCh. 6.2 - Prob. 35PSCh. 6.2 - Prob. 36PSCh. 6.2 - Prob. 37PSCh. 6.2 - Prob. 38PSCh. 6.2 - Prob. 39PSCh. 6.2 - Prob. 40PSCh. 6.2 - Prob. 41PSCh. 6.2 - Prob. 42PSCh. 6.2 - Prob. 43PSCh. 6.2 - Prob. 44PSCh. 6.2 - Prob. 45PSCh. 6.2 - Prob. 46PSCh. 6.2 - Prob. 47PSCh. 6.2 - Prob. 48PSCh. 6.2 - Prob. 49PSCh. 6.2 - Prob. 50PSCh. 6.2 - Prob. 51PSCh. 6.2 - Prob. 52PSCh. 6.2 - Prob. 53PSCh. 6.2 - Prob. 54PSCh. 6.2 - Prob. 55PSCh. 6.2 - Prob. 56PSCh. 6.2 - Prob. 57PSCh. 6.2 - Prob. 58PSCh. 6.2 - Prob. 59PSCh. 6.2 - Prob. 60PSCh. 6.3 - Prob. 1PSCh. 6.3 - Prob. 2PSCh. 6.3 - Prob. 3PSCh. 6.3 - Prob. 4PSCh. 6.3 - Prob. 5PSCh. 6.3 - Prob. 6PSCh. 6.3 - Prob. 7PSCh. 6.3 - Prob. 8PSCh. 6.3 - Prob. 9PSCh. 6.3 - Prob. 10PSCh. 6.3 - Prob. 11PSCh. 6.3 - Prob. 12PSCh. 6.3 - Prob. 13PSCh. 6.3 - Prob. 14PSCh. 6.3 - Prob. 15PSCh. 6.3 - Prob. 16PSCh. 6.3 - Prob. 17PSCh. 6.3 - Prob. 18PSCh. 6.3 - Prob. 19PSCh. 6.3 - Prob. 20PSCh. 6.3 - Prob. 21PSCh. 6.3 - Prob. 22PSCh. 6.3 - Prob. 23PSCh. 6.3 - Prob. 24PSCh. 6.3 - Prob. 25PSCh. 6.3 - Prob. 26PSCh. 6.3 - Prob. 27PSCh. 6.3 - Prob. 28PSCh. 6.3 - Prob. 29PSCh. 6.3 - Prob. 30PSCh. 6.3 - Prob. 31PSCh. 6.3 - Prob. 32PSCh. 6.3 - Prob. 33PSCh. 6.3 - Prob. 34PSCh. 6.3 - Prob. 35PSCh. 6.3 - Prob. 36PSCh. 6.3 - Prob. 37PSCh. 6.3 - Prob. 38PSCh. 6.3 - Prob. 39PSCh. 6.3 - Prob. 40PSCh. 6.3 - Prob. 41PSCh. 6.3 - Prob. 42PSCh. 6.3 - Prob. 43PSCh. 6.3 - Prob. 44PSCh. 6.3 - Prob. 45PSCh. 6.3 - Prob. 46PSCh. 6.3 - Prob. 47PSCh. 6.3 - Prob. 48PSCh. 6.3 - Prob. 49PSCh. 6.3 - Prob. 50PSCh. 6.3 - Prob. 51PSCh. 6.3 - Prob. 52PSCh. 6.3 - Prob. 53PSCh. 6.3 - Prob. 54PSCh. 6.3 - Prob. 55PSCh. 6.3 - Prob. 56PSCh. 6.3 - Prob. 57PSCh. 6.3 - Prob. 58PSCh. 6.3 - Prob. 59PSCh. 6.3 - Prob. 60PSCh. 6.4 - Prob. 1PSCh. 6.4 - Prob. 2PSCh. 6.4 - Prob. 3PSCh. 6.4 - Prob. 4PSCh. 6.4 - Prob. 5PSCh. 6.4 - Prob. 6PSCh. 6.4 - Prob. 7PSCh. 6.4 - Prob. 8PSCh. 6.4 - Prob. 9PSCh. 6.4 - Prob. 10PSCh. 6.4 - Prob. 11PSCh. 6.4 - Prob. 12PSCh. 6.4 - Prob. 13PSCh. 6.4 - Prob. 14PSCh. 6.4 - Prob. 15PSCh. 6.4 - Prob. 16PSCh. 6.4 - Prob. 17PSCh. 6.4 - Prob. 18PSCh. 6.4 - Prob. 19PSCh. 6.4 - Prob. 20PSCh. 6.4 - Prob. 21PSCh. 6.4 - Prob. 22PSCh. 6.4 - Prob. 23PSCh. 6.4 - Prob. 24PSCh. 6.4 - Prob. 25PSCh. 6.4 - Prob. 26PSCh. 6.4 - Prob. 27PSCh. 6.4 - Prob. 28PSCh. 6.4 - Prob. 29PSCh. 6.4 - Prob. 30PSCh. 6.4 - Prob. 31PSCh. 6.4 - Prob. 32PSCh. 6.4 - Prob. 33PSCh. 6.4 - Prob. 34PSCh. 6.4 - Prob. 35PSCh. 6.4 - Prob. 36PSCh. 6.4 - Prob. 37PSCh. 6.4 - Prob. 38PSCh. 6.4 - Prob. 39PSCh. 6.4 - Prob. 40PSCh. 6.4 - Prob. 41PSCh. 6.4 - Prob. 42PSCh. 6.4 - Prob. 43PSCh. 6.4 - Prob. 44PSCh. 6.4 - Prob. 45PSCh. 6.4 - Prob. 46PSCh. 6.4 - Prob. 47PSCh. 6.4 - Prob. 48PSCh. 6.4 - Prob. 49PSCh. 6.4 - Prob. 50PSCh. 6.4 - Prob. 51PSCh. 6.4 - Prob. 52PSCh. 6.4 - Prob. 53PSCh. 6.4 - Prob. 54PSCh. 6.4 - Prob. 55PSCh. 6.4 - Prob. 56PSCh. 6.4 - Prob. 57PSCh. 6.4 - Prob. 58PSCh. 6.4 - Prob. 59PSCh. 6.4 - Prob. 60PSCh. 6.5 - Prob. 1PSCh. 6.5 - Prob. 2PSCh. 6.5 - Prob. 3PSCh. 6.5 - Prob. 4PSCh. 6.5 - Prob. 5PSCh. 6.5 - Prob. 6PSCh. 6.5 - Prob. 7PSCh. 6.5 - Prob. 8PSCh. 6.5 - Prob. 9PSCh. 6.5 - Prob. 10PSCh. 6.5 - Prob. 11PSCh. 6.5 - Prob. 12PSCh. 6.5 - Prob. 13PSCh. 6.5 - Prob. 14PSCh. 6.5 - Prob. 15PSCh. 6.5 - Prob. 16PSCh. 6.5 - Prob. 17PSCh. 6.5 - Prob. 18PSCh. 6.5 - Prob. 19PSCh. 6.5 - Prob. 20PSCh. 6.5 - Prob. 21PSCh. 6.5 - Prob. 22PSCh. 6.5 - Prob. 23PSCh. 6.5 - Prob. 24PSCh. 6.5 - Prob. 25PSCh. 6.5 - Prob. 26PSCh. 6.5 - Prob. 27PSCh. 6.5 - Prob. 28PSCh. 6.5 - Prob. 29PSCh. 6.5 - Prob. 30PSCh. 6.5 - Prob. 31PSCh. 6.5 - Prob. 32PSCh. 6.5 - Prob. 33PSCh. 6.5 - Prob. 34PSCh. 6.5 - Prob. 35PSCh. 6.5 - Prob. 36PSCh. 6.5 - Prob. 37PSCh. 6.5 - Prob. 38PSCh. 6.5 - Prob. 39PSCh. 6.5 - Prob. 40PSCh. 6.5 - Prob. 41PSCh. 6.5 - Prob. 42PSCh. 6.5 - Prob. 43PSCh. 6.5 - Prob. 44PSCh. 6.5 - Prob. 45PSCh. 6.5 - Prob. 46PSCh. 6.5 - Prob. 47PSCh. 6.5 - Prob. 48PSCh. 6.5 - Prob. 49PSCh. 6.5 - Prob. 50PSCh. 6.5 - Prob. 51PSCh. 6.5 - Prob. 52PSCh. 6.5 - Prob. 53PSCh. 6.5 - Prob. 54PSCh. 6.5 - Prob. 55PSCh. 6.5 - Prob. 56PSCh. 6.5 - Prob. 57PSCh. 6.5 - Prob. 58PSCh. 6.5 - Prob. 59PSCh. 6.5 - Prob. 60PSCh. 6.6 - Prob. 1PSCh. 6.6 - Prob. 2PSCh. 6.6 - Prob. 3PSCh. 6.6 - Prob. 4PSCh. 6.6 - Prob. 5PSCh. 6.6 - Prob. 6PSCh. 6.6 - Prob. 7PSCh. 6.6 - Prob. 8PSCh. 6.6 - Prob. 9PSCh. 6.6 - Prob. 10PSCh. 6.6 - Prob. 11PSCh. 6.6 - Prob. 12PSCh. 6.6 - Prob. 13PSCh. 6.6 - Prob. 14PSCh. 6.6 - Prob. 15PSCh. 6.6 - Prob. 16PSCh. 6.6 - Prob. 17PSCh. 6.6 - Prob. 18PSCh. 6.6 - Prob. 19PSCh. 6.6 - Prob. 20PSCh. 6.6 - Prob. 21PSCh. 6.6 - Prob. 22PSCh. 6.6 - Prob. 23PSCh. 6.6 - Prob. 24PSCh. 6.6 - Prob. 25PSCh. 6.6 - Prob. 26PSCh. 6.6 - Prob. 27PSCh. 6.6 - Prob. 28PSCh. 6.6 - Prob. 29PSCh. 6.6 - Prob. 30PSCh. 6.6 - Prob. 31PSCh. 6.6 - Prob. 32PSCh. 6.6 - Prob. 33PSCh. 6.6 - Prob. 34PSCh. 6.6 - Prob. 35PSCh. 6.6 - Prob. 36PSCh. 6.6 - Prob. 37PSCh. 6.6 - Prob. 38PSCh. 6.6 - Prob. 39PSCh. 6.6 - Prob. 40PSCh. 6.6 - Prob. 41PSCh. 6.6 - Prob. 42PSCh. 6.6 - Prob. 43PSCh. 6.6 - Prob. 44PSCh. 6.6 - Prob. 45PSCh. 6.6 - Prob. 46PSCh. 6.6 - Prob. 47PSCh. 6.6 - Prob. 48PSCh. 6.6 - Prob. 49PSCh. 6.6 - Prob. 50PSCh. 6.6 - Prob. 51PSCh. 6.6 - Prob. 52PSCh. 6.6 - Prob. 53PSCh. 6.6 - Prob. 54PSCh. 6.6 - Prob. 55PSCh. 6.6 - Prob. 56PSCh. 6.6 - Prob. 57PSCh. 6.6 - Prob. 58PSCh. 6.6 - Prob. 59PSCh. 6.6 - Prob. 60PSCh. 6 - Prob. 1PECh. 6 - Prob. 2PECh. 6 - Prob. 3PECh. 6 - Prob. 4PECh. 6 - Prob. 5PECh. 6 - Prob. 6PECh. 6 - Prob. 7PECh. 6 - Prob. 8PECh. 6 - Prob. 9PECh. 6 - Prob. 10PECh. 6 - Prob. 11PECh. 6 - Prob. 12PECh. 6 - Prob. 13PECh. 6 - Prob. 14PECh. 6 - Prob. 15PECh. 6 - Prob. 16PECh. 6 - Prob. 17PECh. 6 - Prob. 18PECh. 6 - Prob. 19PECh. 6 - Prob. 20PECh. 6 - Prob. 21PECh. 6 - Prob. 22PECh. 6 - Prob. 23PECh. 6 - Prob. 24PECh. 6 - Prob. 25PECh. 6 - Prob. 26PECh. 6 - Prob. 27PECh. 6 - Prob. 28PECh. 6 - Prob. 29PECh. 6 - Prob. 30PECh. 6 - Prob. 1SPCh. 6 - Prob. 2SPCh. 6 - Prob. 3SPCh. 6 - Prob. 4SPCh. 6 - Prob. 5SPCh. 6 - Prob. 6SPCh. 6 - Prob. 7SPCh. 6 - Prob. 8SPCh. 6 - Prob. 9SPCh. 6 - Prob. 10SPCh. 6 - Prob. 11SPCh. 6 - Prob. 12SPCh. 6 - Prob. 13SPCh. 6 - Prob. 14SPCh. 6 - Prob. 15SPCh. 6 - Prob. 16SPCh. 6 - Prob. 17SPCh. 6 - Prob. 18SPCh. 6 - Prob. 19SPCh. 6 - Prob. 20SPCh. 6 - Prob. 21SPCh. 6 - Prob. 22SPCh. 6 - Prob. 23SPCh. 6 - Prob. 24SPCh. 6 - Prob. 25SPCh. 6 - Prob. 26SPCh. 6 - Prob. 27SPCh. 6 - Prob. 28SPCh. 6 - Prob. 29SPCh. 6 - Prob. 30SPCh. 6 - Prob. 31SPCh. 6 - Prob. 32SPCh. 6 - Prob. 33SPCh. 6 - Prob. 34SPCh. 6 - Prob. 35SPCh. 6 - Prob. 36SPCh. 6 - Prob. 37SPCh. 6 - Prob. 38SPCh. 6 - Prob. 39SPCh. 6 - Prob. 40SPCh. 6 - Prob. 41SPCh. 6 - Prob. 42SPCh. 6 - Prob. 43SPCh. 6 - Prob. 44SPCh. 6 - Prob. 45SPCh. 6 - Prob. 46SPCh. 6 - Prob. 47SPCh. 6 - Prob. 48SPCh. 6 - Prob. 49SPCh. 6 - Prob. 50SPCh. 6 - Prob. 51SPCh. 6 - Prob. 52SPCh. 6 - Prob. 53SPCh. 6 - Prob. 54SPCh. 6 - Prob. 55SPCh. 6 - Prob. 56SPCh. 6 - Prob. 57SPCh. 6 - Prob. 58SPCh. 6 - Prob. 59SPCh. 6 - Prob. 60SPCh. 6 - Prob. 61SPCh. 6 - Prob. 62SPCh. 6 - Prob. 63SPCh. 6 - Prob. 64SPCh. 6 - Prob. 65SPCh. 6 - Prob. 66SPCh. 6 - Prob. 67SPCh. 6 - Prob. 68SPCh. 6 - Prob. 69SPCh. 6 - Prob. 70SPCh. 6 - Prob. 71SPCh. 6 - Prob. 72SPCh. 6 - Prob. 73SPCh. 6 - Prob. 74SPCh. 6 - Prob. 75SPCh. 6 - Prob. 76SPCh. 6 - Prob. 77SPCh. 6 - Prob. 78SPCh. 6 - Prob. 79SPCh. 6 - Prob. 80SPCh. 6 - Prob. 81SPCh. 6 - Prob. 82SPCh. 6 - Prob. 83SPCh. 6 - Prob. 84SPCh. 6 - Prob. 85SPCh. 6 - Prob. 86SPCh. 6 - Prob. 87SPCh. 6 - Prob. 88SPCh. 6 - Prob. 89SPCh. 6 - Prob. 90SPCh. 6 - Prob. 91SPCh. 6 - Prob. 92SPCh. 6 - Prob. 93SPCh. 6 - Prob. 94SPCh. 6 - Prob. 95SPCh. 6 - Prob. 96SPCh. 6 - Prob. 97SPCh. 6 - Prob. 98SPCh. 6 - Prob. 99SP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.Similar questions
- Suppose that in a certain market the demand function for a product is given by 10p + q = 1,900 and the supply function is given by 50p − q = 250. (Assume price is measured in dollars.) If the government levies a tax of $5 per item, find the equilibrium point after the tax is levied. The tax is added to the selling price of the product. (q, p) =arrow_forwardQ3. A firm faces a demand function of the form P = 90 – 2Q? (a) Plot the graph for their total revenue (b) If the marginal cost is given by MC(Q) = 3Q² – 8Q + 7 and TC(0) = 0, estimate the total profit if they produce 5 units (round up the answers to 2 decimals)arrow_forward(4) A camera company estimates that the demand function for its new digital camera is p = 275e-0.159 and the supply function is p = 25e0.219. Here q is measured in thousands. (a) What are the price and level of sales when the market is in equilibrium? (Recall: equilibrium occurs when demand and supply are equal.) (b) Compute the consumer surplus when the market is in equilibrium. (c) Compute the producer surplus when the market is in equilibrium. (d) Compute the total surplus when the market is in equilibrium. (e) Graph the demand and supply curves. (You may use an electronic device for this if you wish.) Verify that the curves intersect at your answer to (a). Shade regions of the graph whose areas correspond to the consumer surplus and producer surplus, respectively.arrow_forward
Recommended textbooks for you
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning
Calculus: Early Transcendentals
Calculus
ISBN:9781285741550
Author:James Stewart
Publisher:Cengage Learning
Thomas' Calculus (14th Edition)
Calculus
ISBN:9780134438986
Author:Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:9780134763644
Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:PEARSON
Calculus: Early Transcendentals
Calculus
ISBN:9781319050740
Author:Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:W. H. Freeman
Calculus: Early Transcendental Functions
Calculus
ISBN:9781337552516
Author:Ron Larson, Bruce H. Edwards
Publisher:Cengage Learning
01 - What Is A Differential Equation in Calculus? Learn to Solve Ordinary Differential Equations.; Author: Math and Science;https://www.youtube.com/watch?v=K80YEHQpx9g;License: Standard YouTube License, CC-BY
Higher Order Differential Equation with constant coefficient (GATE) (Part 1) l GATE 2018; Author: GATE Lectures by Dishank;https://www.youtube.com/watch?v=ODxP7BbqAjA;License: Standard YouTube License, CC-BY
Solution of Differential Equations and Initial Value Problems; Author: Jefril Amboy;https://www.youtube.com/watch?v=Q68sk7XS-dc;License: Standard YouTube License, CC-BY