Use the image to answer the question.
An illustration shows Quadrant 1 of a coordinate plane. The x-axis is labeled Games and ranges from 0 to 7 in 1 unit increments. The y-axis is labeled points and ranges from 0 to 250 in increments of 50. The graph is titled Points per Game. A line connects four points plotted on the graph. The coordinates of the plotted points are left parenthesis 0 comma 0 right parenthesis, left parenthesis 3 comma 90 right parenthesis, left parenthesis 5 comma 150 right parenthesis, and left parenthesis 7 comma 210 right parenthesis.
The graph displays the number of points scored and the number of basketball games played. Determine the average points per game.
An average of ____ points were scored per game.
An average of 87.5 points were scored per game.
To find the average points per game, you can calculate the average change in points per game by dividing the total change in points by the total change in games.
The total change in points is 210 (210 - 0) and the total change in games is 7 (7 - 0).
Therefore, the average points per game is 210 / 7 = 30 points.