Factoring Quadratic Functions Using X^2

What are the x-intercept/s of the function? 

• (3,0)

• (-3,0)

• (9,0) & (-9,0)

• (-3, 0) & (3, 0)

Tags

CCSS.HSF-IF.C.7A

Solve for the values of x:
(x + 2)(x - 3) = 0

• { 2, 3 }

• { -2, -3 }

• { 2, 3 }

• { -2, 3 }

Tags

CCSS.HSA-REI.B.4B

• -2, 4
• -8
• ±8
• No real solution

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.
z² - 18z + 81 = 0

• z = 9

• z = -9

• z = 9 or z = -9

Tags

CCSS.HSA-REI.B.4B

What is another word that describes the zeroes of a quadratic function?  

• y-intercepts

• vertex

• x-intercepts

• maximum

Tags

CCSS.HSF-IF.C.7D

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4

• 2

• 8

• 20

Tags

CCSS.HSA-REI.B.4B

What do you do to the b value to correctly complete the square?

• square it

• divide it by 2 and square the result

• divide it by 2 and take the square root of the result

• divide it by 2 only

Tags

CCSS.HSA-REI.B.4B

Which method is most efficient for solving:

x²-7x-18= 0

• Square Root Method

• Quadratic Formula

• Factoring

• Completing the Square

Tags

CCSS.HSA-REI.B.4B

Complete the square.
x² + 6x + ____

• x² + 6x + 9

• x² + 6x - 36

• x² + 6x + 36

• x² + 6x - 9

Tags

CCSS.HSA-REI.B.4B