Answer:
0.512 goals per game
Explanation:
Given:
The number of games is represented by 'x' and number of goals is represented by 'y'.
Now, 'y' varies directly with x and at a constant rate.
A direct relationship line is given as:
![y=mx](https://img.qammunity.org/2020/formulas/mathematics/middle-school/rti023gnmf0eoebu9lv4mc68pcnv7yw90a.png)
Where, 'm' is the constant rate of change.
Now, for
![x=82,y=42](https://img.qammunity.org/2020/formulas/mathematics/middle-school/r270p1a4r8ay1m74gubrcuorxkz5phbwk2.png)
So, a point on the line is given as (82, 42).
Plug in the given values in the above equation and solve for 'm'. This gives,
![42=82m\\m=(42)/(82)\\m=0.512](https://img.qammunity.org/2020/formulas/mathematics/middle-school/qfznfg0drp2ofdkv41a3l3nrdahg104vmz.png)
Therefore, Keith scores at a constant rate of 0.512 goals per game.