Question

Find two other points on the quadratic function.

y = x^2 + 2x – 3

Answer 1

-3, +1 (x+3)(x-1)

Answer 2

but one of the answers is (1,0)

Answer 3

and the other answer is (2,5) . But I dont understand how you get it

Answer 4

Oh, points, just plug in. You could have infinite points. When x=1, y =0: when x=2, y=5

Answer 5

I gave you the factored form first, if you aren't at that level or don't know what that is, IGNORE it. Right now, all you're doing is pluggin in a value for x, and seeing what f(x) or y value is returned. Plug and chug, as they say.

Answer 6

whats the value of x ?

Answer 7

I'm sorry Im so lost .