00:01
So line 1 passes through the points negative 3, negative 2, and 6 negative 5.
00:10
I can find the slope of that line by finding the change in the ys over the change in the axis.
00:22
Negative 5 then plus 2 over 6 plus 3.
00:27
That gives me negative 3 over 9, which is negative 1 3rd.
00:35
So the slope of line 1 is negative 1 3rd.
00:40
Line 2 passes through 3 0 and negative 6 .3.
00:47
Line 2 slope is 3 minus 0 over negative 6 minus 3.
00:55
That gives me 3 over negative 9, which is negative 1 3.
01:04
Lastly, we have line 3, negative 3, 5, and 3 -3.
01:13
That slope is 3 minus 5 over 3 minus negative 3.
01:24
That gives me negative 2 over 3 plus 3.
01:31
Or negative 2 over 6, which is negative 1 3rd...