00:03
All right, we're going to find a system of equations.
00:08
X plus y is greater than or equal to 9, which is this line.
00:15
So that's line a, because when x is 0, y is 9, which is there.
00:25
And when y equals 0, x is 9, which is there.
00:30
Line b, we're asked to do 6x plus y is greater than or equal to 16.
00:39
So when x is zero, y is 16, so there's our green line.
00:46
And when y is zero, x is 16 over 6, or 2 .6, 2 .6, 2 and 2 thirds.
00:58
Okay, so let's also include x greater than equal to 0.
01:05
So that's everything to the right of the y -axis, and y greater than equal to 0.
01:12
So essentially we're dealing with everything in the first quadrant.
01:22
And secondly, we're asked for greater than, well, so when the x and y coordinates together are greater than 9, that means everything above this line.
01:41
And when 6x plus y, go with orange.
01:47
When 6x plus y is greater than 16, that's everything...