To fidn the euatio of the trend line:
1. Identify two points (x,y) in the line:
(30, 25) and (120,60)
2. Find the slope m:
Formula to find the slope:

For the trend line:

3. Find the y-intercept b:
Use the value of the slope and one point in the from y=mx+b:
(30,25) x= 30, y=25
m=7/18

4. Write the equation with the values of m and b you find:
