Answer
y=8.5x
Work Step by Step
Use (1,8.50) and (3,25.50) and plug into m=$\frac{y2-y1}{x2-x1}$
Thus, m=$\frac{25.50-8.50}{3-1}$=$\frac{17.00}{2}$=8.50.
The slope is 8.50.
Use one of the points and the slope and plug into y=mx+b:
8.5=8.5(1)+b
8.5=8.5+b
0=b
Use m and b to plug into y=mx+b to get y=8.5x.
