4.7 Key Features of Quadratics No Calculator

What's the vertex of the following quadratic function?

2x² - 8x + 11

• maximum at (-2, 3)

• minimum at (3, 2)

• minimum at (2, 3)

• maximum at (3, -2)

Find the vertex y = x² - 2x - 5

• minimum at (-2, 10)

• maximum at (-1, 15)

• minimum at (1, -6)

• maximum (1, -12)

Find the vertex   y = x² - 6x + 5

• V(-3, 8)
• V(-3, - 10)
• V(3, -4)
• V(3, 5)

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

What is the y-intercept for y = 3x² + 2x - 5

• 3

• 2

• -5

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept for y = 9x² + 2x - 12

• 9

• 2

• -12

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept for y = (x + 3)(x - 5)

• 3

• -5

• -15

Tags

CCSS.HSF-IF.C.7A

Maximum or Minimum:

y = 4x² - 5x + 10

• Maximum

• Minimum

Maximum or Minimum:

y = -2x² - 5x -24

• Maximum

• Minimum

Maximum or Minimum:

y = (x - 6)(x - 4)

• Maximum

• Minimum