Question

HELP PLEASEE!!!

What is the equation of a parabola that intersects the x-axis at points (-1, 0) and (3, 0)?

A. y = x2 – 2x – 3

B. y = x2 + 3x + 2

C. y = x2 – 3x + 2

D. y = x2 + 2x – 3

Answer 1

• A. y = x² – 2x – 3

Explanation:

The given points are zero's or roots of the function.

We can put the equation as:

• y = (x + 1)(x - 3) = x² -3x + x - 3 = x² - 2x - 3

This is option A