Answer:
C
Step-by-step explanation:
Find the slope of the line using the equation (y1-y2)/(x1-x2), which is change in rise over change in run. use any two points, for example (2,-2) and (3,-1). using the formula, (-2-(-1))/(2-3) is the rate of change, giving you -1/-1 as the slope, which is -1. the rate of change is -1.
She would have saved 30 dollars.
The correct answer is {-5,11}
I hope this helps. :)
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