PSAT Math Multiple-Choice Practice Question 51

Correct Answer: C

Explanation:

C

The question asks for a certain form of the equation. There are many forms in which a quadratic can be written. To see x-intercepts or solutions, a quadratic must be in factored form, since factoring is used to find solutions. The factored form is y = a(x - m)(x - n), where m and n are the x-intercepts. Only (C) is in this form. The correct answer is (C).