00:01
Okay, so you need to find the slope of a through f to figure out what is compared to the slope of 2 .y minus x is equal to 3.
00:10
Let's put this in point slope form, so y, sorry, slope interset form, y equals mx plus b.
00:18
So 2y is equal to x plus 3.
00:22
So add x to both sides.
00:24
And then divide by 2.
00:25
So 1 half x plus three halves.
00:29
So one half is our slope.
00:33
We're also going to use that the slope is equal to y2 minus y1 over x2 minus x1.
00:42
So for part a, our slope is 7 minus 8 over 5 minus 7.
00:52
7 minus 8 is negative 1.
00:54
5 minus 7 is negative 1.
00:55
5 minus 7 is.
00:57
Is negative 2.
00:58
So this is 1 half.
01:01
So this one works.
01:05
For part b, you have 5 minus 6 over negative 14 minus negative 12.
01:14
5 minus 6 is 1, but negative 14 minus negative 12 is negative 12 is negative 14 plus 12, which is negative 2.
01:23
So this would be negative 1 half, so that one wouldn't work.
01:29
Part c is negative 3 minus 7 over negative 3 minus 2...