Quiz about Module 5 Polynomial Functions

Question 1

Determine whether the given expression is POLYNOMIAL OR NOT POLYNOMIAL.
$$7x^2-3x+8$$

Accepted Answer

POLYNOMIAL

Answer

NOT POLYNOMIAL

Question 2

Determine whether the given expression is POLYNOMIAL OR NOT POLYNOMIAL.

$$5x^{-3\ }+6x-1$$

Accepted Answer

NOT POLYNOMIAL

Answer

POLYNOMIAL

Question 3

Determine whether the given expression is POLYNOMIAL OR NOT POLYNOMIAL.

$$\sqrt{x}$$

Accepted Answer

NOT POLYNOMIAL

Answer

POLYNOMIAL

Question 4

Polynomial

Accepted Answer

an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication.

Answer

An infinite series with increasing powers (exponents) of a variable.

Question 5

Determine whether the given expression is POLYNOMIAL OR NOT POLYNOMIAL.

$$\frac{3}{x^4}$$

Accepted Answer

NOT POLYNOMIAL

Answer

POLYNOMIAL

Question 6

Determine whether the given expression is POLYNOMIAL OR NOT POLYNOMIAL.

Accepted Answer

POLYNOMIAL

Answer

NOT POLYNOMIAL

Question 7

Is the function in the graph concave up or concave down on the segment from x = 0 to x = 1?

Accepted Answer

Concave up

Answer

Concave down

Question 8

At which point does the function change concavity on the interval from x = 0 to x = 1?

Accepted Answer

x = 0.5

Answer

x = 0.25

Answer

x = 0.75

Answer

x = 2

Question 9

Is the graphing increasing or decreasing from x = 1 to x = 1.6?

Accepted Answer

increasing

Answer

decreasing

Answer

constant

Answer

no change

Question 10

Is the function concave up or concave down from x = 1 to x = 2?

Accepted Answer

Concave up

Answer

Concave down

Question 11

Which of the following is true about the graph of the polynomial functions?

Accepted Answer

II and III

Answer

I and IV

Answer

I and II

Answer

III and IV

Question 12

Which is not true about the domain and range of the polynomial function?

Accepted Answer

The range is $$y\ge-4$$

Answer

The domain is all real numbers.

Answer

The range is $$\left(-\infty,\ +\infty\right)$$ .

Answer

The domain is $$\left(-\infty,+\infty\right)$$

Question 13

What are the zeros of the function?

Accepted Answer

{-2, -5}

Answer

{ -5,-3 }

Answer

{0,-5}

Answer

{0,-2}

Question 14

Describe the end behavior of the polynomial function?

Accepted Answer

$$as\ x\ \rightarrow+\infty,\ f\left(x\right)\ \rightarrow+\infty$$

$$as\ x\ \rightarrow\ -\infty,\ f\left(x\right)\ \rightarrow\ -\infty$$

Answer

$$as\ x\rightarrow\ +\infty,\ f\left(x\right)\ \rightarrow-\infty\ $$ $$as\ x\ \rightarrow\ -\infty,\ f\left(x\right)\ \rightarrow\ +\infty$$

Answer

$$as\ x\ \rightarrow+\infty,\ f\left(x\right)\ \rightarrow+\infty$$

$$as\ x\ \rightarrow\ -\infty,\ f\left(x\right)\ \rightarrow+\infty$$

Answer

The answer is not here.

Question 15

The end behavior of a polynomial function is determined by the degree and the sign of the leading coefficient.
Identify the degree of the polynomial and the sign of the leading coefficient

Accepted Answer

Leading Coefficient Positive
Degree - Even

Answer

Leading Coefficient Positive
Degree - Odd

Answer

Leading Coefficient Negative
Degree - Even

Answer

Leading Coefficient Negative
Degree - Odd

Module 5 Polynomial Functions

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