00:01
Alright, so this is a rough sketch of the graph from the problem, but you can look in the book for a more accurate sketch.
00:10
So this is f of x, and the first thing we're trying to find is f of one.
00:20
So we will just go to the x -axis, go to one, go up, and it's right here.
00:26
So then we go over and see f of one is two.
00:30
And this is where it is on the graph.
00:33
The next thing we're trying to find is f of 4.
00:36
So again, we go to where x is 4, go up, see that it's right here, and we can see that f of 4 is 5.
00:46
So then we're trying to solve for f of 4 minus f of 1...