Solving Quadratic Equations: Zero Product Property

Question 1

Factor out the GCF of .

Revolt · Accepted Answer

B: 2

Question 2

Sanjay graphs a quadratic function that has x-intercepts of –3 and 7. Which functions could he have graphed? Check all that apply.g(x) = x2 – 4x – 21g(x) = (x – 3)(x + 7)g(x) = 3x2 – 12x – 63g(x) = –(x + 3)(x – 7)g(x) = x2 + 4x – 21

Revolt · Accepted Answer

A: g(x) = x2 – 4x – 21; C: g(x) = 3x2 – 12x – 63; D: g(x) = –(x + 3)(x – 7)

Question 3

The graph of a quadratic function touches, but does not cross, the x-axis at x = 4. Which function represents this situation?

Revolt · Accepted Answer

C: y = x2 – 8x + 16

Question 4

Next, factor the trinomial completely. The equation becomes .

Revolt · Accepted Answer

B: 0 = 2(2x – 5)(x + 3)

Question 5

The roots of the function are .

Revolt · Accepted Answer

C: –3 and 5/2

Solving Quadratic Equations: Zero Product Property Answers

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