Question

y= -2x^2+4x-1
y=2x-5 ???? please help

Answer 1

you want the values of x and y?

Answer 2

yes

Answer 3

equating both we have
-2x^2 +4x -1 = 2x -5
-2x^2+2x+4 =0
x^2 - x -2 =0
(x+1)(x-2)=0
x = -1, or 2 substitute in
y = 2x -5 to get the values of y

Answer 4

huhh ? how is that . i dont get any of thiss .

Answer 5

ok so does y=-3

Answer 6

When x=-1, y=-7
when x=2, y=-1
Were you to graph these two figures, one is a line, the other a parabola the line would cross the parabola at those points. Might be helpful to graph them and see what they look like.

Answer 7

Oops something doesn't seem to jive. I guess I don't understand the problem.

Answer 8

thanks for trying to help me thoughh !