(10/28) Unit 3: Zeros of Polynomial Functions

(10/28) Unit 3: Zeros of Polynomial Functions

Multiple Choice

Using the graph provided, identify the zeros of the function.

(Click on graph to make it BIGGER)

• x = 1

• x = -2 & x = 1

• x = -2, x = 0, & x = 1

• x = 0

Multiple Choice

Write a polynomial function of least degree in standard form given the following zeros/roots/solutions:
Multiplicity is the power on that factor!!
(Example: -2 Multi. 3 means

 $\left(x+2\right)^3$  

• A

• B

• C

• D

Multiple Choice

Write the cubic polynomial in factored form with 
zeros -1, 1, and 4

• (x + 1) (x - 1) (x - 4)
• x³ - 4x² - x + 4
• (x + 1) (x - 1) (x + 4)
• x³ - 4x² - x - 4

Multiple Choice

Find the zeros of the function and graph.
y=(x + 2)(x - 3)(3x - 5)

• x=-2, x=3, x=5/3
• x=2, x=-3, x=-3/5
• x=2, x=-3, x=5/3
• x=-2, x=3, x=5

Multiple Choice

Find the root(s) of the function.

• x = 3
• x = {-3, -1, 2}
• x = {-3, 2}
• x = -1

Multiple Choice

How many roots or zeros does the equation

f(x) = 5x⁴-8x³+4x²-6x+3 have?

• 3

• 4

• 5

• 0

HOMEWORK ASSIGNMENT!!

• Complete the 5 questions assigned to be prepared for your quiz on Friday (10/30)!!

• We will be graphing this unit!!! So make sure you are engaged & present daily!!