The graph is given with the x-axis iron and y-axis distance in yards.
ExplanationTo determine the average change in distance for each increase of 1 in the iron number
The coordinates from the graph is
[tex](3,155),(4,145)[/tex]The average rate of change is determined as
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Substitute the values.
[tex]\begin{gathered} m=\frac{155-145}{3-4} \\ m=\frac{10}{-1}=-10 \end{gathered}[/tex]AnswerHence the average change in distance for each increase of 1 in the iron number is -10.
The situation represents that the distance decrease by 10 yards for each number of iron.