Rates are usually unit rates since unit rates are only for one amount for example: $35/1 video game. Rates are also written like 35 dollars per video game. a problem would ask how much would it be for 6 video games
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
According to the image, the line goes through the following points:

So, the slope is:

Thus, the equation is of the form:

We substitute a point and find "b":

Finally, the equation is:

Answer:

Answer:
The answer is C.
Step-by-step explanation:
The answer is C. because for A. 4 * 13 is 52 not 72. For B. 7 * 9 is not 72 its 63. and D. It does not have 4 and 18.