Question

Isaac keeps track of the miles per gallon his car gets per week. He has accumulated the following data:

(1, 24), (2, 24.48), (3, 24.97), (4, 25.47)

What is the common difference or ratio?

a. The common difference is 0.48.

b. The common difference is 0.50.

c. The common ratio is 0.98.

d. The common ratio is 1.02.



Zach read a book for 10 minutes every weekend in the first month, 20 minutes in the second month, 40 minutes in the third month, and 80 minutes in the fourth month.

Victoria read a book for 35 minutes every weekend in the first month, 50 minutes in the second month, 65 minutes in the third month, and 80 minutes in the fourth month.

Which statement best describes the methods used by Zach and Victoria to increase the time they spent reading a book?

a. Zach's method is linear because the number of minutes increased by an equal factor every month.

b. Victoria's method is linear because the number of minutes increased by an equal number every month.

c. Both Victoria and Zach's method is exponential because the number of minutes increased by an equal factor every month.

d. Both Victoria and Zach's method is exponential because the number of minutes increased by an equal number every month.