John's mother took him to the doctor's office. His height measured 36 inches. For the past 4 years his height has grown at the rate of 2 inches per year.
Which equation represents John's height after y years?
This is an example of an equation in slope intercept form. The value in front of the y is the slope. It is 2 because he is getting taller by 2 inches every year.
The 36 is the y-intercept or the starting point of the graph. We used 36 because that was his height when we started measuring.
