5. The graph of the function C(n) below shows the number of calories burned after riding a stationary bike for minutes. 100 80 60 40 20 4 8 12 16 20 24 Time (in Minutes) a. Interpret the meaning of the statement C(8) = 32 After riding the stationary bike for 8 minutes, you burned 32 calories. b. Determine C(10) and interpret its meaning in a complete sentence. (100) c. Identify the vertical intercept. Write it as an ordered pair and interpret its meaning in a complete sentence. d. Determine the slope of C(n) and interpret its meaning in a complete sentence. Number of Calories Burned

Interpret the intercepts for each situation. Use the intercepts to graph the function. 9. Biology A lake was stocked with 350 trout. Each year, the population decreases by 14. The population of trout in the lake after x years is represented by the function f(x) = 350 – 14x. Trout Population ff(x) 450 400 350 300 250 200 150 100 50 5 10 15 20 25 30 35 40 45 Time (years) 10. The air temperature is -6°C at sunrise and rises 3°C every hour for several hours. The air temperature after x hours is represented by the function f(x) = 3x – 6. 10 8. 6 1234 5 -2 -4 -8 -10 Time (hours) Lesson 2 216 Module 5 Population Temperature (°C) O Houghton Mifflin Harcourt Publishing Company

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The graph represents the relationship between the amount of money a babysitter makes, m, and the hours the baby sitter works, h. 75 70 65 60 (8, 61) Which function can be used to determine the amount of money 55 the babysitter makes, d, after h hours? 50 45 40 d = 5h + 7 35 (4, 33). 30 d = 7h +5 25 20 O d = th+5 15 10 O d= th+7 4 5 67 8 Time babysitting (h) 1 2 9 10 1 4 Next P Type here to search 11 Home F9 PgUp F11 End PrtScn F8 F2 F3 F4 F5 F6 F7 F10 F1 Amount earned ($)

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The following graph represents the height of a golf ball h (in feet) in terms of the number of seconds elapsed since the golf ball was hit, t. 50+ 45 40 35 30 25 20 15- 10- t -1 2 3 5 -5 a. Which of the following conveys what the point (3, 45) represents? Select all that apply. The ball's height from the ground was 45 feet 3 seconds after the ball was hit. VA record of the ball's height 3 seconds after it was hit. The simultaneous values of t and h that are in the relationship defined by the graph. OA record of the ball's height 45 seconds after it was hit. OThe ball's height from the ground was 3 feet 45 seconds after the ball was hit. b. As the time since the golf ball was hit increases from 0 to 2.5 seconds, the height of the ball * to about increases v from * feet. c. On what interval of time is the ball's height decreasing? Use interval notation. Preview d. At what time(s) is the golf ball 0 feet above the ground? If there are multiple solutions, list all solutions as a…

11. Write the function for each graph. ↑ -5 H . 5. . x -5 + H . 5. X H n 5 X ← -5 J 5. . X

Fill in the blanks outside the table showing the changes in the x- and y-values. Then, answer the questions. 1) a. Is it a linear function? b. Why/Why not? -3 1. -2 -1 3 4 1 5 2) a. Is it a linear function? b. Why/Why not? -5 2 1. -2 4 -1 6 1. 2 8 1. 10 3) -10 a. Is it a linear function? 1. -5 b. Why/Why not? 4 2 5 1. 10 -3 4) y a. Is it a linear function? b. Why/Why not? -1 -9 ]. -4 1. 1 1. 3 7 11 1. 11 15