Bill payment using smart phones is projected to increase rapidly. Projections of mobile payment transaction values (in billions of dollars) in a certain region for the years 2009 through 2016 are shown in the table. Complete parts (a) through (c). OA. [8,18,1] x [0,1000,100] www.b Q b. Graph the model and the data points on the same axes. Comment on the fit. Choose the correct graph below. B. [8,18,1] x [0,1000,100] Z Year 2009 2010 2011 2012 Q Transaction Values ($ billions) 26 58 99 168 a. Find a quadratic function that models y, the payment transaction values, as a function of x, the number of years after 2000. y=0 (Type an equation. Type integers or decimals rounded to three decimal places for any numbers in the equation.) C. [8,18,1] x [0,1000,100] Year 2013 2014 2015 2016 Transaction Values ($ billions) 253 359 472 620 O D. [8,18,1] x [0,1000,100] O O G

Use the data in the table below to complete parts (a) through (c). 8 9 15 44 25 25 4 Y 27 Click the icon to view the steps for finding influential points. (a) Construct a scatterplot of the data. Choose the correct graph below. OA. Q G OB. 50- 9 30 ·¯¯¯¯¯¯¯ -------- 0- HI X Q Q OC. Ay 12- -12- 17 22 X 40 Q Q N 20 22 OD. 121x 48 2 Q N

26 14 30 45 20 21 27 32 40 Age of residents in a neighbourhood 50 9 37 40 36 13 52 10 35 12 36 57 28 51 47 48 42 42 52 1 53 Create a box-and-whisker plot for the data. If you use technology copy and paste the graph into your solutions document. If you prepare it by hand use a ruler and take a clear, well-lit photograph or scan and insert it as an image into your document.

I need help with Part B.

2. The line models the height of a glider y, in feet, over x hours. Height of Glider a. Find the y-intercept of the graph. 4,000 3,000 b. What does the y-intercept represent? 2,000 1,000 0.5 1.5 Time (hr) Height (ft)

A researcher explored the relationship between the percent of snow days during the month of January and the percent of students that receive an A on class finals at the same schools. The researcher collects information from 6 schools, shown in the table below. Use the graph below to plot the points and develop a linear relationship between the percent of January snow days and the percent of 'A' final exams. School Number % of Snow Days % of A Finals 1 5 25 2 7 45 3 10 50 4 12 65 5 20 70 6 25 86   Using the linear relationship graphed above, estimate the percent of 'A' finals if there are 2% snow days. Provide your answer below: