Quadratic Functions

Given the equation y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

Given the equation: y = -(x - 4)² - 3,

does this parabola have a maximum or minimum value?

• Maximum

• Minimum

Tags

CCSS.HSF-IF.C.7A

What causes the graph of y = x² to open downward?

• multiply the x² by a fraction

• multiply the x² by a decimal

• multiply the x² by a negative number

• multiply the x² by a number greater than 1

What is the axis of symmetry for the following equation?
y=4x²-8x+9

• x=-8

• x=1

• x=-1

• x=2

Convert to vertex form:
f(x) = x² + 10x + 24

• f(x) = ( x - 5 )² + 1

• f(x) = ( x + 5 )² - 1

• f(x) = ( x - 5 )² - 1

• f(x) = ( x + 5 )² + 1

Find the y-intercept of f(x) = 2x²-2x + 1

• 2

• -2

• 1

• -1

Tags

CCSS.HSF-IF.C.7A

Does the equation open up or down? 
Y = -3x² +7x - 2

• up

• down

• Neither; it opens to the right.

• Neither; it opens to the left.

Tags

CCSS.HSF-IF.C.7A

Find the vertex of f(x) = 2x² - 6x + 1

• x = 1.5

• x = 0.666...

• x = 3

• x = -3

Determine the Domain and Range of the following function.

• Domain: All Real #'s; Range: y ≥ 3

• Domain: All Real #'s; Range: y ≥ -4

• Domain: All Real #'s; Range: y ≤ 3

• Domain: All Real #'s; Range: y ≤ -4

Determine the Domain and Range of the following function.

• Domain: All Real #'s; Range: y ≤ 4

• Domain: All Real #'s; Range: y ≥ 4

• Domain: All Real #'s; Range: y ≤ -4

• Domain: All Real #'s; Range: y ≥ -4