Question

Understanding Slope
A graph shows hours of practice labeled 1 to 6 on the horizontal axis and tournament goals scored on the vertical axis. A line increases from 1 to 6.5.

Use the regression line for the data in the scatterplot to answer the question. On average, how many more goals will a player score for every additional hour of practice?

of a goal
of a goal
1 goal
goals

Answer 1

Slope = (change in goals)/(change in hours) = (6.5 − 1)/(6 − 1) = 5.5/5 = 1.1.

So about 1.1 more goals per additional hour of practice (≈1.1 goals/hour).