SOLUTION: (1)5x-y=5 (2) x+3y=6 (3) graph y=3x (4) graph (-7, -4) and (-1, -10).

Algebra ->  Graphs -> SOLUTION: (1)5x-y=5 (2) x+3y=6 (3) graph y=3x (4) graph (-7, -4) and (-1, -10).      Log On


   



Question 33259: (1)5x-y=5
(2) x+3y=6
(3) graph y=3x
(4) graph (-7, -4) and (-1, -10).

Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
There are a couple ways to solve this, one way is slope, y-intercept form;
which is; y=mx+b
m=slope
b=y-intercept
For number 1 and 2 we will first put them in this form;
1)5x-y=5
-y=-5x+5
y=5x-5
slope=5
y-intercept=-5
graph+%28300%2C300%2C+-6%2C6%2C-6%2C6%2C+5x-5%29
2)x+3y=6
3y=-x+6
y=%28-x%2B6%29%2F3
y=-1%2F3x+2
slope= -1%2F3x
y-intercept= 2
graph+%28300%2C300%2C+-6%2C6%2C-6%2C6%2C+-%281%2F3%29x%2B2%29
3)is already in slope intercept form;
y=3x
graph+%28300%2C300%2C+-6%2C6%2C-6%2C6%2C+y=3x%29
4)you are given the points, so you need to put this in slope intercept form, but first you need to find the slope;
m=%28-10--4%29%2F%28-1--7%29
m=%28-6%29%2F6=-1
Now with the form point-slope you need to put this in slope-intercept form;
use either point given to find equation;
y-y=m(x-x)
y-(-4)=-1(x-(-7))
y+4=-1(x+7)
y+4=-x-7
y=-x-3
graph+%28300%2C300%2C+-6%2C6%2C-6%2C6%2C+-x-3%29
Hope you understand!
=)