Quadratic Functions (CCA Ch 8)

The solutions of a quadratic equation are known as the _____.

• vertices

• roots

• squares

• formulas

What form of the quadratic function is

f(x) = (x + 7)(x + 5)

• standard form

• graphing form

• factored form

• vertex form

What is the y intercept for the equation:
y = -8x² + 3x - 7

• (0, -8)
• (0, 3)
• (0, 7)
• (0, -7)

Tags

CCSS.HSF-IF.C.7A

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

• (5, -4)
• (-5, -4)
• (-15, -4)
• (15, -4)

What are the
x-intercepts of the function
f(x)= (x - 2)(x + 3)?

• x = - 2 or x = 3
• x = 2 or x = -3
• The are no real roots
• x = 2 or x = 3

Tags

CCSS.HSF-IF.C.7C

Find the missing value "c" to create a perfect square trinomial:

x² – 8x + _c_ = (x - 4)²

• -4

• 16

• 4

• 8

In the picture, what does the coordinate (0, -2), where the parabola crosses over the y-axis, represent?

• the x-intercept

• the minimum

• the axis of symmetry

• the y-intercept

The line through the parabola so that each side is a mirror image is:

• vertex

• maximum

• line of symmetry

• maximum

What is the graph of a quadratic function called?

• parabola

• linear

• cubic

• sinusoidal

x² - 9 is a polynomial that can be factored as the product of the sum and difference of two terms.

The is an example of:

• perfect square = (x + 3)²

• difference of squares = (x - 3)²

• difference of squares = (x + 3)(x - 3)