Review of Solving Polynomial Functions

Use Descartes Rule of Signs to determine the possible number of positive and negative real roots.

• 3 or 1 positive roots and 0 negative roots

• 4, 2, or 0 positive roots and 1 negative root

• 4, 2, or 0 positive roots and 0 negative roots

• 2 or 0 positive roots and 1 negative roots

Match the graph to the function

• f(x)= -x²+3x+2

• f(x) = -x³+2

• f(x) = x³+2

• f(x) = ⅓x⁴-5x²+2

What are the zeros for the given graph? Select all that apply.

Tags

CCSS.HSA.APR.B.3

What are the zeros of the given graph? Select all that apply.

Tags

CCSS.HSF-IF.C.7C

What are the zeros of the given graph ? Choose all that apply.

Which one could be a representation of the equaiton of this graph?

Tags

CCSS.HSA.APR.B.3

Find all zeros for the polynomial function P(x) = x³ -3x²-5x+15

• 3, √5 

• 3, √5, -√5

• -3, √5, -√5

• -3, 5i, -5i

Find a polynomial function of degree 3 with zeros 3i and -2.

• P(x) = x³+2x²+9x+11

• P(x) = x³-2x²+9x+18

• P(x) = x³+2x²+9x+18

• P(x) = x²-3ix+2x-6i

Tags

CCSS.HSA.APR.B.3

How many real zeros does the polynomial function
P(x) = x³+2x²+9x+18 have?

• 0

• 1

• 2

• 3

How many negative zeros does the polynomial function
P(x) = x³+3x²-5x-15 have?

• 0

• 1

• 2

• 3