Question

Finding the Slope of a Trend Line
A graph titled Passing Statistics has pass attempts on the x-axis, and yards on the y-axis. A line goes through points (24, 127) and (36, 163).

The scatterplot shows how many pass attempts and yards a quarterback has in different football games. Notice that the line passes through the second point from the left, (24, 127) and the farthest point on the right (36, 163).

What is the slope of the trend line?

Answer 1

Slope = (163 − 127) / (36 − 24) = 36 / 12 = 3.

So the trend line rises 3 yards per additional pass attempt (slope = 3).