00:01
Okay, so i went ahead in graph the y equals x squared minus six x plus nine and it wanted us to just look at the graph and figure out where the x intercept is.
00:08
The x intercept is where it hits the x -axis, which is right here.
00:11
And if i look, that is the point three zero.
00:15
Now, if i look at my equation, figure it out algebraically, your x intercept is when y is equal to zero.
00:21
So i'm going to set this quadratic equal to zero.
00:25
Okay.
00:26
And i'm going to solve this by factoring.
00:28
So i have to find two numbers that when multiplied equal 9, and then when added together, the equal negative 6.
00:35
So my two numbers are going to be negative 3 and negative 3.
00:39
So i have 0 equals x squared minus 3x minus 3x plus 9...