March 16 - Parabolas

What is the equation for axis of symmetry?

• y = 1

• y = 0

• x = 2

• x = 1

What are the green dots called?

• axis of symmetry

• vertex

• y-intercepts

• x-intercepts, zeros, or roots

Tags

CCSS.HSF-IF.C.7A

Identify each x-intercept (zero).

• 2

• -2

• -3

• 4

• -1

Tags

CCSS.HSF-IF.C.7A

The formula to find the axis of symmetry of a parabola is shown. What value would be substituted for a if you were given the quadratic equation below?

y = -x² + x - 4

• -4

• 1

• -1

• 2

What are the coordinates of the vertex of the parabola shown?

• (0, 2)

• (2, 0)

• (0, 0)

• (1, 2)

The axis of symmetry of a parabola always passes through which point?

• the y-intercept

• (0, 0)

• the vertex

• the x-intercept

Which quadratic equation could represent the graph shown?

• f(x) = 2x² - 4x + 2

• f(x) = –2x² + 4x

• f(x) = x² + 4x

• f(x) = 4x² - 4x - 2

Which equation represents the pattern shown in the table?

• y = –x² + 4x + 1

• y = 2x² – 2x – 5

• y = 2x² + x – 1

• y = x² + 4x – 1

Identify each of the x− and y−intercepts of the relation shown.

• (2, 0)

• (-6, 0)

• (0, -6)

• (-3, 0)

• (0, 2)

Tags

CCSS.HSF-IF.C.7A

If a parabola has a vertex at (-3, 2), what is the equation of the axis of symmetry?

• y = -3

• x = 2

• x = -3

• y = 2