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 (230, 2,850) and (242, 2,860).

The scatterplot and trend line show the number of pass attempts and passing yards a football team had during seven seasons.

Because none of the data points lie on the trend line, you must find two points on the line.

Point 1 can be
.
Point 2 can be
.
Using those two points, the slope of the line is

Answer 1

Point 1 can be (230, 2850).
Point 2 can be (242, 2860).

Slope = (2860 − 2850) / (242 − 230) = 10 / 12 = 5/6 ≈ 0.833 yards per pass attempt.