Quadratics- solutions, axis of symmetry and vertex point

Solve by taking square roots:

5b² = 45

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Solve by taking square roots:
5m² + 1 = 6

• m = 0
• m = 1 or -1
• m = √7
• m = 7/5 m = -7/5

Tags

CCSS.HSA-REI.B.4B

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

Tags

CCSS.HSF-IF.C.7A

Find the zeros by factoring: 0 = x²+9x+18

• -6 and -3

• 6 and 3

• 9 and 2

• -9 and -2

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Use the quadratic formula to solve 0 = 2x² + 2x - 12?

• -2, 3

• 2, 3

• 2, -3

• -2, -3

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

Tags

CCSS.HSF-IF.C.7A

The axis of symmetry line passes through which point?

• y-intercept
• any random point
• vertex
• symmetrical point for the vertex

Tags

CCSS.HSG.GPE.A.2

What is the axis of symmetry of: y = 2x²+8x+9

• x = 2

• x = -1

• x = -2

• x = 4

What is the vertex of y= x² - 8x + 14 ?

• (2, 4)
• (-4, -2)
• (4, -2)
• (-2, 4)

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7