Test Review on Quadratics Standard and Vertex Form

Find the axis of symmetry:

y = -1/12 (x - 6)² + 4

• x = -6

• y = 4

• x = 6

• y = -4

Write in standard form:

• y = 3x² + 27x - 30

• y = 3x² + 9x - 30

• y = 3x² + x - 11

• y = x² + 9x - 10

Find the maximum of:

f(x) = -3x² + 12x - 10

• (-2, -46)

• (2, 2)

• (-2, -10)

• (2, 50)

Find the axis of symmetry:

y = x² - 8x + 17

• x = -4

• x = 2

• x = -2

• x = 4

Does the parabola open up or down? y = 10 - 12x - 3x²

• Up

• Down

Tags

CCSS.HSF-IF.C.7A

State the vertex of the parabola:

y = -4(x - 5)²

• (0, -5)

• (0, 5)

• (-5, 0)

• (5, 0)

What is the effect on the graph of the equation y = x² - 3 when it is changed to y = x² + 6?

• The graph translates up.

• The graph changes from opening downward to opening upward.

• The graph narrows.

• The graph translates down.

How would you translate the graph of

y = x² to produce the graph of

y = -(x +8)²?

• Reflect over x-axis & shift right 8

• Reflect over y-axis & shift down 8

• Reflect over x-axis & shift left 8

• Reflect over y-axis & shift up 8

What is the vertex of

y = (x + 2)(3x + 36)?

• (-7, -75)

• (-7, -48)

• (7, 128)

• (7, 45)

State the vertex of the following parabola:

y = 4(x +1)(x - 5)

• (2,-36)

• (-2, 28)

• (2, 20)

• (-2, -18)