Question

Y = x2 + 3x - 5
y = x + 3

Answer 1

I'm not quite sure what u want, but here is what u probably wanted...

y= 2x + 3x - 5

combine like terms: y= 6x - 5

then u can graph, using 6/1 as ur slope and -5 as ur y int.

same thing with the other

Answer 2

(-4,-1) (2,5)

Explanation:

y = x^2 + 3x - 5

y = x + 3

Since they are both equal to y we can set them equal to each other

x^2 + 3x - 5 = x + 3

Subtract x from each side

x^2 + 3x-x - 5 = x-x + 3

x^2 +2x -5 =3

Subtract 3 from each side

x^2 + 2x - 5-3 = 3- 3

x^2 +2x -8=0

What 2 numbers multiply to -8 and add to 2

4*-2 = -8

4-2 =2

(x+4) ( x-2) =0

Using the zero product property

(x+4) =0 ( x-2) =0

x = -4 x=2

Now we need to find y for each x

If x = -4 y = -4+3 =-1

If x =2 y = 2+3 =5