Question

Re-write the quadratic function below in Standard Form
y = -(x – 4)(x – 7)

Answer 1

- x² + 11x - 28

Explanation:

y = - (x - 4)(x - 7) ← expand factors using FOIL

= - (x² - 11x + 28) ← distribute parenthesis by - 1

y = - x² + 11x - 28 ← in standard form