Solve Quadratic Functions Review

What is the green dot on the parabola called?

• vertex

• root

• dot

• minimum value

Does
y = -4x²
have a maximum or minimum value?

• maximum

• minimum

Tags

CCSS.HSF-IF.C.7A

y = (x-9)²+5
What is the vertex? 

• (-9,5)

• (9,5)

• (5,-9)

• (-5,9)

Which of these is a quadratic function?

• f(x) = 2x + 4

• f(x) = -2x + 4

• f(x) = 3x²

• q(x) = 3x³ + 2x² - 4x + 9

The two solutions to 
y = 2x² -x -3 are...

• 1 and 3/2

• -1 and 3/2

• -1 and -3/2

• 1 and -3/2

Tags

CCSS.HSA-REI.B.4B

Solve
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Tags

CCSS.8.EE.A.2

Factor
k² -2k - 24

• (k+4)(k-6)

• (k+4)(k+6)

• (k+6)(k-1)

• (k-4)(k+6)

Solve by square roots
5x² = 80

• {4, -4}

• {4}

• {5.831, -5.831}

• {8.185, -8.185}

Tags

CCSS.8.EE.A.2

Solve by factoring
3m² - 2m = 1

• {4/5, 3}

• {1/5, 5/2}

• {3/2, 1}

• {-1/3, 1}

Tags

CCSS.HSA-REI.B.4B

Solve by completing the square
b² + 14b - 15 = 0

• -1.2 or -12.8

• 1 or -15

• No solution

• 13 or -7

Tags

CCSS.HSA-REI.B.4B