what are the solutions o the system?
y= x^2 + 3x - 4
y= 2x+2

Question

what are the solutions o the system?
y= x^2 + 3x - 4
y= 2x+2

rishavraj · Answer

it means x^2 + 3x - 4 = 2x + 2 ....proceed further

agent0smith · Answer

Same thing as the last question, set equal to each other, solve for x, then plug in x to find y.

anonymous · Answer

@agent0smith well i got x=2,-3? what do i plug in to find y?

agent0smith · Answer

Plug in each of them, one at a time.

anonymous · Answer

@agent0smith so plug each value into both equations? so basically do like 4 equations? :/

agent0smith · Answer

No, use one. The easier one. Do the same thing you did in the last question...

rishavraj · Answer

both equations r equal.. so after getting value of x... plug it in any one of the two

agent0smith · Answer

If you plug each value into both, you'll waste time getting the same y value twice.

anonymous · Answer

@rishavraj @agent0smith okay well i got x=6?

rishavraj · Answer

no u r wrong

agent0smith · Answer

"well i got x=2,-3"

You already found x. Now you're finding y. Use y= 2x+2.

When x=2, y= ?

When x=-3, y=?

anonymous · Answer

WAIT I GOT IT. it's (-3,-4) and (2,6)

agent0smith · Answer

Yes.