Quadratic Functions

If the zeros of a quadratic function are (1, 0) and (9, 0), what is the equation of the axis of symmetry?

• x = 1

• x = 9

• y = 0

• x = 5

• cannot be determined from this information

Tags

CCSS.HSF-IF.C.7A

The discriminant is

• ax²  + bx  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

Solve for x.  Round to the nearest hundredth if necessary.
3x² = 16x + 12

• x = -.67, 6

• x = -6, .67

• x = 3.33, 18

• x = -3.33, 18

Tags

CCSS.HSA-REI.B.4B

Solve for x.  Round to the nearest hundredth if necessary.
2x² = -x + 3

• x = -1, 1.5

• x = 1.5, -1

• x = 1, 1.5

• x = -1.5, 1

Tags

CCSS.HSA-REI.B.4B

Factor:   3x²- 6x - 24

• (3x - 8)(x + 3)

• (3x + 4)(x - 6)

• 3(x - 2)(x + 4)

• 3(x + 2)(x - 4)

7x² - 26x - 8 = 0

• x = -1 and x = -7/8

• x = 4 and x = -2/7

• x = -4 and x = 2/7

• x = 4 and x = -7/2

Tags

CCSS.HSA-REI.B.4B

Solve
(x+3)²-5 = 9

• -3±√14

• 3±√14

• ±11

• ±5

Tags

CCSS.8.EE.A.2

Identify the 'a' value:
 y = 16x² - 8x - 24

• 16

• 8

• -8

• -24

Identify the 'b' value:
 y = 16x² - 8x - 24

• 16

• -8

• 8

• -24

Identify the 'c' value:
 y = 16x² - 8x - 24

• 16

• -8

• 24

• -24