Question

Select the correct graph and equation.Chelsea dog-sits for her neighbors as a part-time job. She charges $12 a day plus an additional $2.50 for each walk she takes with the dogs. Determine which graph and which equation represent the amount of money Chelsea earns in one day, A, after taking w walks with the dogs.

Answer 1

We can represent this situation with a linear equation of the form y= mx + b, where m is the slope of the line and b is the y-intercept.

In this case the slope would be 2.5 as it is the money Chelsea charges per walk. The y-intercept would be 12 as it is the money she charges in one day.

Therefore, the equation would be:

A= 2.5w + 12.

The graph of the equation is the one that starts at A=12 and its slope is equal to 2.5..

The graph is the one that is highlighted in red in the picture.

The answers are hightlighted in red.