This question is incomplete. Assuming that the question is similar to the reference I found, we will look for the grade-point average, y, of a student who plays video games 8 hours per week. To calculate for this, just plug in x = 8 in the equation given.
y = - 0.0537x + 2.9453
y = - 0.0537 * 8 + 2.9453
y = 2.5157 = 2.52
The grade-point average is about 2.52.
Note: if the given x is not 8, just plug in that value into the equation then calculate.
The y-intercept of the equation 2.9452 indicates the grade-point average of the student who does not play video games (x = 0).
The slope -0.0537 indicates that for every hour the student plays, the grade-point average decreases by 0.0537 points.
