Quadratic Equations and Graphs

What is the significance of the ordered pair (0, -2) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry

Tags

CCSS.HSF-IF.C.7A

What is the significance of the ordered pair (2, -4) to the graph?

• It is the maximum

• It is an x-intercept

• It is the y-intercept

• It is the minimum

What is the vertex of y= x² + 4x + 3? (Use your calculator to determine.)

• (2,1)

• (-2,1)

• (0,0)

• (-2,-1)

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

• x = 1

• x = -1

• x = -2

• x = 4

What is the axis of symmetry of y= 2x² - x - 6?

• x = 1/4

• x = -1/4

• x = 49/8

• x = -49/8

Determine the axis of symmetry of y = -6x² -8

• x = -6

• x = 8

• x = -8

• x = 0

What's the y-intercept of y = 3x²- 6x + 4

• (4,0)
• (-4,0)
• (0,-4)
• (0,4)

Tags

CCSS.HSF-IF.C.7A

Use your calculator to determine the vertex of the parabola:

y = -12x + 22 + 2x²

• (3,4)

• (-3,4)

• (3, -4)

• (-3,-4)

Use your calculator to determine and select the zeros for the following quadratic:

y = 2x² - x - 15

• x = 3

• x = 5

• x = -5/2

• x = -3/2

• x = -3

Use your calculator to find the zeros for the following quadratic:

y = 4x² - 5x - 6

• x = -4/3

• x = -3

• x = 2

• x = 4/3

• x = -3/4