Quadratics review

Which equation describes the red graph?

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

What is the "formula" for finding the axis of symmetry? 

Does this graph have a maximum or minimum?

• Minimum
• Maximum

Tags

CCSS.HSF-IF.C.7A

When a parabola opens downward the vertex is

• a minimum
• a maximum
• a vertex
• a parabola

When a parabola opens upward the vertex is

• a minimum
• a maximum
• a vertex
• a parabola

Identify the axis of symmetry. 

• x=-1
• y=-1
• x=4
• y=4

Tags

CCSS.HSF-IF.C.7A

Describe the transformation

• left 1

• right 1

• up 4

• reflect

What is the first step to solving THIS equation by completing the square?
a² + 10a + 21 = 0

• Set the equation equal to zero
• Divide 10 by 2 and add the result to both sides
• Add a² and 10a together
• Subtract the 21

Tags

CCSS.HSA-REI.B.4B

Complete the Square
x² + 6x = 5

• (x + 3)² = 5
• (x + 6)² = 9
• (x + 3)² = 14
• (x + 6)² = 14

Tags

CCSS.HSA-REI.B.4B