Analyzing Quadratic

What is the range of the function graphed above?

• y ≥ -2

• y ≤ 4

• y ≥ 4

• y ≤ -2

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

How many x-intercepts does it have?

• 0

• 1

• 2

• 4

The vertex form of a quadratic function is

• y = ax² + bx + c

• y = a(x - h)² + k

• y - y₁ = m(x - x₁)

• Ax + By = C

• All Real Numbers

• All Real Numbers

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4

• x = 4

• y = 4

• y = -4

What is the vertex?
f(x) = -x² - 4x + 12.

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

For the function above, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

Identify the a, h, and k terms in the following equation: 2\left(x+4\right)^2-1

• a=2, h=-4, k=-1

• a=-2, h=4, k=1

• a=2, h=4, k=1

• a=-2, h=-4, k=1