Polynomial Functions — Test

Question 1

According to the Rational Root Theorem, which is a factor of the polynomial f of x is equal to 3 x cubed minus 5 x squared minus 12 x plus 20 ?

Revolt · Accepted Answer

3 x minus 5

Question 2

What is the sum of the first seven terms of the geometric series? 3 plus 12 plus 48 plus 192 plus dot dot dot

Revolt · Accepted Answer

16 comma 383

Question 3

Which of the following describes the roots of the polynomial function f of x is equal to open paren x plus 2 close paren squared times open paren x minus 4 close paren times open paren x plus 1 close paren cubed ?

Revolt · Accepted Answer

negative 2 with multiplicity 2 comma 4 with multiplicity 1 , and negative 1 with multiplicity 3

Question 4

Which table describes the behavior of the graph of f of x is equal to 2 x cubed minus 26 x minus 24 ?

Revolt · Accepted Answer

Table with 2 columns and 5 rows.Row 1: Column 1, 'Interval'; Column 2, 'Relation of graph to x-axis' Row 2: Column 1, 'open paren negative infinity comma negative 3 close paren'; Column 2, 'Below' Row 3: Column 1, 'open paren negative 3 comma negative 1 close paren'; Column 2, 'Above' Row 4: Column 1, '(−1, 4)'; Column 2, 'Below' Row 5: Column 1, '(4, ∞)'; Column 2, 'Above'

Question 5

Which is a potential rational root of f of x at point cap p ?

Revolt · Accepted Answer

The root at point cap p may be 3 fifths .

Polynomial Functions — Test Answers

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