00:01
All right, our job in this problem is to write an equation that passes through the point 84 and is parallel to 4x minus 9y minus 7 is equal to 0.
00:16
Now, the setup, i'm actually going to set up for my answer here first.
00:22
And my answer needs to be set up as y minus, and i'm going to have a blank here for the y value, equal to, i'm going to have another blank for the slope.
00:37
And then i'm going to have x minus another blank and this blank's going to be for the x value and i can actually fill in most of my information right now from the point that we're passing through this eight four so my eight is the x value so i can put that as x minus eight and then i have four is my y value so i can put y minus four and so it seems like i'm almost done i have y minus four is equal to now i still have some blank space here for the slope times x minus 8.
01:14
So the only piece of work i really have to do to finish this now is i got to figure out what the slope is.
01:21
And to figure out the slope, i need to use my information that's here.
01:27
So i have 4x minus 9y minus 7 is equal to 0.
01:33
Now what i want to do is i want to solve this for y.
01:36
So i'm going to actually subtract my 4x and add my 7 to the other side.
01:42
So get negative 9y is equal to negative 4x.
01:45
X plus seven.
01:49
Then i want to divide by negative nine...