Question

Carrington is paid at the same rate each time he baby sits. The graph shows the rates he is paid for different times.

Which equation represents the situation?


A. y = 1/7x - 5


B. y = 1/7x + 5


C. y = 7x - 5


D. y = 7x + 5

Graph:

Answer 1

The correct answer is D, y = 7x + 5


Calculate the slope by doing y2 - y1 / x2 - x1
y2 - y1 / x2 - x1
61 -33 / 8 - 4
28 / 4
7

Next find the y intercept by looking at the graph, which is 5 in the case

Put it together and you have y = 7x + 5, or option D