Question

Write an equation for a parabola with x-intercepts (-1,0) and (2,0) which passes through the point (1,-4).

Answer 1

2x² - 2x - 4

Explanation:

let p and q be x intercepts

(x - p) (x - q)

= ( x + 1) ( x - 2)

= x² - x - 2

multiply by 2 to get y intercept -4

and there you have it.

I hope this helps

have a nice day dear.