Solving Quadratic Equations by Factoring

Question 1

How many times does the graph of 4x = 32 - x2 cross the x-axis?

Revolt · Accepted Answer

C: 2

Question 2

What are the solutions to the equation? -2, 162, -16-4, 8✔ 4, -8

Revolt · Accepted Answer

D: ✔ 4, -8

Question 3

When the product of 6 and the square of a number is increased by 5 times the number, the result is 4. Which equation represents this situation?

Revolt · Accepted Answer

A: 6x2 + 5x - 4 = 0

Question 4

When the product of 6 and the square of a number is increased by 5 times the number, the result is 4. Select all of the values that the number could be.

Revolt · Accepted Answer

A: ; B:

Question 5

Which equation represents the situation? 2w² - w + 28 = 0✔ 2w² - w - 28 = 02w² + w - 28 = 02w² + w + 28 = 0

Revolt · Accepted Answer

B: ✔ 2w² - w - 28 = 0

Question 6

A ball is thrown into the air with an upward velocity of 80 feet per second. The function h = -16t2 + 80t models the height h, in feet, of the ball at time t, in seconds. When will the ball reach the ground?

Revolt · Accepted Answer

C: after 5 seconds

Question 7

What is the length of the rectangle? 3 feet4 feet✔ 7 feet8 feet

Revolt · Accepted Answer

C: ✔ 7 feet

Question 8

What did you include in your response? Check all of the boxes that apply.

Revolt · Accepted Answer

A: Peta can only use the zero product property when the product of factors is equal to zero.; B: Peta must multiply x by (x - 5).; C: Peta must write the equation in standard form, then factor the expression.; D: Each factor must be set equal to zero, not 20.

Solving Quadratic Equations by Factoring Answers

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