SOLUTION: need to solve by graphing: x-y=2 x+y=-4 I know this sounds basic -- but been out of school and for some reason, i can't graph or figure this out! thanks so much

Question 243188: need to solve by graphing:
x-y=2
x+y=-4
I know this sounds basic -- but been out of school and for some reason, i can't graph or figure this out!
thanks so much
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
solve by graphing:
x-y=2
x+y=-4
----------
Each eqn is a straight. 2 points is sufficient to plot a straight line.
x-y=2
x = y+2
Pick values for y and find x
y...x
0...2 --> (2,0)
4...6 --> (6,4)
Plot the 2 points and draw a line thru them.
-------------
x+y=-4
y = -x-4
x...y
0...-4 --> (0,-4)
4...0 ---> (4,0)
Draw a line thru the points.
Where they intersect is the solution.
RELATED QUESTIONS
Ok, I know this should be easy, but i forget how to do this type of question when the... (answered by Earlsdon)

I need to graph this absolute value function: t(x) = 3- the absolute value x.(I don't... (answered by stanbon)

3x+y=4-3x 2y=x+9 I can figure the problem out all the way until I have the fraction... (answered by mananth)

I need some help with these graph problems. I would appreciate some help with solving... (answered by jim_thompson5910)

Solve by graphing 3x+y=2 and y=2x-2 and estimate the point of intersection. I am... (answered by ewatrrr)

I really have been confused for a while on this question and can't seem to figure it out. (answered by stanbon,jim_thompson5910)

I am having so mush trouble trying to figure out first what to do with this problem, I... (answered by ewatrrr)

how do i solve and graph y=x^2+6x-7? i know i have to use x=-b/2a but i'm confused on... (answered by woolybear)

If 3^(2x) + 9 = 10(3^x) solve for x. I know that x = 2 but only because of guess an... (answered by Fombitz)