00:01
So in this problem, we're given this map and says that a person is driving a car in a straight road, and the graph shows the distance y and miles that the individual is from home after x hours.
00:10
So let's look at the first question.
00:12
First question says, find the slope intercept form of the line.
00:16
Well, that may mean the first thing we need to do is find the slope.
00:19
Remember, to find the slope, that's our change in our y over our change in our x.
00:22
So we have to find our rise over our run.
00:25
So i always read from breath to right.
00:26
So our rise, we're going from when y is equal to 40 up until when y is equal to 90.
00:32
Will that be a change of 50? so our rise in this case is 50.
00:35
And our run is our horizontal change, which in this case is 2.
00:39
Well, 50 divided by 2 is equal to 25.
00:42
So that's going to be our slow.
00:43
The next thing we need to do is find our y intercept.
00:46
Well, because our slope for every one is going to go up 25, that means if we go down 25 and over 1 would be at the y intercept.
00:54
Well, 40 minus 25 is equal to 15.
00:58
So that will represent our y intercept...