Question

Write a quadratic function in standard form with zeros -4 and -3

Answer 1

y = x² + 7x + 12

Explanation:

Given the zeros x = - 4 and x = - 3, then the corresponding factors are

(x - (- 4) ) and (x - (- 3) ), that is

(x + 4) and (x + 3)

The function is then the product of its factors

y = (x + 4)(x + 3) ← expand using FOIL

= x² + 7x + 12