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.
