So for the first one you would replace Y with what it = which in this case is -x+7So it would look something like this
-x+7=-x+7
These two should be the points as then 2 points will remain on both sides
Slope
Equation in point slope form
- y+2=3/4(x+6)
- y=3/4x+6-2
- y=3/4x+4
When x=-15
- y=3/4(-15)+4
- y=-45/4+4
- y=(-45+16)/4
- y=--29/4
Just above 7
Your numbers will be 3+2+3=8
If you try the hint, the first number minus the 2nd plus the third is 4 then: 3-2+3=4
Answer: 3+2+3=8