Polynomial Functions

True or False:  If (7x + 4) is a factor of some polynomial function f, then 4/7  is a zero of the function. 

• True

• False

Use the quadratic formula to find the solutions for
y = -x² - 5x + 12

• -4.9 and -0.1

• -8.54 and 8.54

• -0.45 and 3.55

• -6.77 and 1.77

What is the degree of the function:

f(x) = 6x² + 4 - 3x⁴ + 5x - 9x³

• 1

• 2

• 3

• 4

What type of function is:

f(x) = 6x² + 4 - 3x⁴ + 5x - 9x³

• linear

• quadratic

• cubic

• quartic

A function with degree 3 is called

• constant

• cubic

• linear

• quadratic

If f(x) = 4x³ + 5x² - 3, find f(-2).

• -415

• -15

• -55

• -615

Simplify:

(4x³ + 2x² - 5x - 9) + (-3x³ - 5x² - x + 11)

• 7x³ + 7x² - 6x + 2

• x³ - 3x² - 6x + 2

• 7x³ - 3x² - 6x + 2

• x³ + 7x² - 4x + 2

Simplify:

(4x³ + 2x² - 5x - 9) - (-3x³ - 5x² - x + 11)

• 7x³ + 7x² - 4x - 20

• 7x³ - 3x² - 6x + 2

• x³ - 3x² - 6x + 2

• x³ + 7x² - 4x - 20

Simplify: (x - 5)²

• x² - 25

• x² + 25

• x² - 10x + 25

• x² - 5x - 25

Evaluate: f(4) = -2x² + 3x - 8

• -28

• 68

• 36

• -60