Question

The graph represents the amount of money Sal earns for babysitting.



image



Do the the ordered pairs (1, 8) and (2.5, 20) represent a different rate in the graph?

A.
Yes, Sal gets paid more for more hours worked.

B.
Yes, Sal increases his rate for each hour worked.

C.
No, Sal is paid the same rate for each hour worked.

D.
No. Sal decreases his rate for each hour worked.

Answer 1

C. No, Sal is paid the same rate for each hour worked.

Explanation: 8/1 = $8 per hour and 20/2.5 = $8 per hour (slope = (20−8)/(2.5−1) = 12/1.5 = 8), so the rate is constant.