00:01
Hi everybody, so today we're going to be graphing this equation over here, f of x equals 3 minus x squared.
00:07
So to start, we're going to do a little bit of algebra to go ahead and find some points.
00:11
So we're going to start by setting the entire equation equal to zero.
00:20
So we get 0 equals 3 minus x squared.
00:25
We'll start by just subtracting x squared over.
00:29
So we get x squared equals 3.
00:34
Then we just take the square root of 3, and x is equal to plus or minus the square root of 3.
00:42
So then we're going to do when x is equal to 0.
00:48
So f of 0 is equal to 3 minus 0 squared.
00:54
And that just gives you f of 0 is equal to 3.
00:59
So we're going to real quick just add our lines to kind of give you a feel for the scale of this graph...