00:01
All right, so we know that based on the linear aggression, the relationship between the number of hours spent playing video games, x, and the grade point average y is given by this equation.
00:13
And we want to predict the grade point average of a student who plays eight hours of video games per week per day.
00:21
So that means we want to solve for y when we know that x is equal to eight.
00:27
So we'll just plug in eight and then plug it into our calculator.
00:40
0559 negative times 8 plus 2 .9205 comes out to 2 .4733.
00:54
It's going to be our y value.
00:56
And that's going to be the gpa that we would predict based on our mom.
01:03
For part b, we are told to interpret the slope.
01:11
So the slope is going to be the amount by which the gpa is going to go down for every one hour of video games that are played, right? because if x is, so if you don't play any video games, you have a baseline gpa...