Question

y + 2x = −1
3y − x = 4

graph of two lines that intersect at the point (negative 1, 1)

graph of two lines that intersect at the point (1, 1)

graph of two parallel lines with positive slopes

None of the above

Answer 1

First, we need to put this is slope intercept form. that is y=mx+b.
Do do that, take the first equation:
y+2x=-1
subtract -2x from both sides
You're left with y=-2x-1
Now do you now how to do the same for the second equation?

Answer 2

?

Answer 3

To put it in slope intercept for, move the x to the other side, it'll now be:
3y=x+4
Now divide the equation by 3, and you get:
y=1/3x+4/3
So you're two equations are :
y=-2x-2
y=1/3x+4/3
When you graph them , they intersect at (-1,1).
So it is a.

Answer 4

I meant y=-2x-1 for the first equation...typo XD

Answer 5

thank you

Answer 6

You're welcome