Quadratic Functions

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

True or false:
The solutions, roots, x-intercepts, and zeros of a quadratic equation are all the same thing.

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Find the y-intercept of f(x) = 2x² - 2x + 1

• 2
• -2
• 1
• -1

Tags

CCSS.HSF-IF.C.7A

What is the vertex of the quadratic function:
y = x² - 6x + 11?

• (3,2)
• (-3,-2)
• (-3,2)
• (3,-2)

Determine the vertex of the parabola:
y = 5x² - 20x + 13

• (5, -7)
• (-2, -7)
• (2, -7)
• (-7, -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

What is the axis of symmetry of:y=2x²-4x+9

• x = 1
• x = -1
• x = -2
• x = 4