Question

Im having trouble with this,

×+y=2 ; (8,5)
Can you please show me how to do it?

Answer 1

well, if x=8 and y=5, it is clear that x+y = 8+5 = 13, not 2

Do you want a line parallel to x+y=2, passing through (8,5)? In that case, since the slope of x+y=2 is -1, you want

y-5 = -1(x-8)

or some rearrangement of that.

Your question was very vague.

Answer 2

I have homework on perpendicular lines. Does that clear it up?

Answer 3

yes. Just modify what I told you. What is the slope of the line perpendicular to x+y = 2 ?
Use that in your point-slope form of the line you want.

Answer 4

I have to write it as an equation, Ill give you an example;
y=×-6 ; (-1,2)
m=-1
....


I have to write it like that.