Test: Chapter 12 Quadratic Functions

If a function is quadratic, the _____ differences will be the same.

• second

• first

• third

• fourth

What is the domain of the graphed function?

• (0,∞)

• (-∞,∞)

• (0,8)

• (-∞,8)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range of the graphed function?

• (-∞,∞)

• (0,∞)

• (-∞,8]

• (0,8)

Tags

CCSS.HSF-IF.C.7A

What is the interval of increase of the graphed function?

• (-∞,∞)

• (8,∞)

• (-∞,8)

• (-∞,2)

Tags

CCSS.HSF-IF.C.7A

Which equation would graph a parabola that opens downward and has x-intercepts of (3,0) and (-4,0)?

• f(x) = (x-3)(x+4)

• f(x) = - (x+3)(x+4)

• f(x) = - (x-3)(x+4)

• f(x) = -(x-3)(x-4)

Tags

CCSS.HSF-IF.C.7A

Write the quadratic function f(x) = (2x+4)(x-5) in factored form.

• f(x) = 2(x+2)(x-5)

• f(x) = (x+2)(x-5)

• f(x) = (x-5)(2x+4)

• f(x) = 2(2x+4)(x-5)

Determine the axis of symmetry of a parabola with x-intercepts (-2,0) and (4,0).

• x = 1

• x = -2

• x = 4

• x = 0

Tags

CCSS.HSF-IF.C.7A

Determine the axis of symmetry of a parabola with a vertex at (-5,-4).

• y = -4

• y = -5

• x = -4

• x = -5

Determine the vertex of a parabola represented by the equation

f(x) = x²+2x - 4.

Two symmetric points on the parabola are (2,-2) and (6,-2).

• (2,4)

• (-20,-4)

• (4,20)

• (4,2)

The graph of the function f(x) = 2(x-3)(x+4) opens _____.

• upward

• downward

• to the right

• to the left

Tags

CCSS.HSF-IF.C.7A