Quadratic Functions by Using Quadratic Equation

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

Find the Vertex:
y = x² + 6x + 2

• (-3,-7)

• (1,6)

• (6,2)

• No Real Solution

y = (x-9)²+5
What is the vertex? 

• (-9,5)

• (9,5)

• (5,-9)

• (-5,9)

The standard form of a quadratic function is

• ax² + bx + c

• a(x - h)² + k

• y - y₁ = m(x - x₁)

• Ax + By = C

Which of these is a quadratic function?

• f(x) = 2x + 4

• f(x) = -2x + 4

• f(x) = 3x²

• q(x) = 3x³ + 2x² - 4x + 9

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 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

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

Tags

CCSS.HSA-REI.B.4B