Quadratic Functions Lesson

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

Use the quadratic formula to solve 2x² + 2x - 12?

• -2, 3
• 2, 3
• 2, -3
• -2, -3

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

• 16
• -8
• 8
• -24

The quadratic equation can be used to solve quadratic equations that cannot be factored.

• True
• False

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

What is the vertex of this quadratic equation?

y = -2(x + 2)² + 4

• (-2,4)

• (-2,-4)

• (4,-2)

• (-4,-2)

Does this graph have a maximum or minimum?

• Minimum
• Maximum

Tags

CCSS.HSF-IF.C.7A

What is the equation of the axis of symmetry for this graph?

• x = 0
• x = 1
• y = 0
• y = 1

Tags

CCSS.HSF-IF.C.7A

What is the vertex of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

What is the vertex of this quadratic equation?

y = 2(x - 2)² + 4

• (-2,4)

• (2,4)

• (4,-2)

• (-4,-2)