Quiz about Polynomial Functions

Question 1

What is the degree of the function:

f(x) = 6x² + 4 - 3x⁴ + 5x - 9x³

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 2

A function with degree 3 is called

Accepted Answer

cubic

Answer

constant

Answer

linear

Answer

quadratic

Question 3

If f(x) = 4x³ + 5x² - 3, find f(-2).

Accepted Answer

-15

Answer

-415

Answer

-55

Answer

-615

Question 4

Simplify:

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

Accepted Answer

x³ - 3x² - 6x + 2

Answer

7x³ + 7x² - 6x + 2

Answer

7x³ - 3x² - 6x + 2

Answer

x³ + 7x² - 4x + 2

Question 5

Simplify:

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

Accepted Answer

7x³ + 7x² - 4x - 20

Answer

7x³ - 3x² - 6x + 2

Answer

x³ - 3x² - 6x + 2

Answer

x³ + 7x² - 4x - 20

Question 6

Is this a function:

(-1, 1), (-2, 2), (-3, 2), (-4, 1)?

Accepted Answer

Yes

Answer

No

Question 7

Is this a function:

(-1, 1), (-2, 2), (-1, -1), (-2, -2)

Accepted Answer

No

Answer

Yes

Question 8

Is this a function?

Accepted Answer

Yes

Answer

No

Question 9

Simplify: (x - 5)²

Accepted Answer

x² - 10x + 25

Answer

x2 - 25

Answer

x2 + 25

Answer

x² - 5x - 25

Question 10

Evaluate: f(4) = -2x² + 3x - 8

Accepted Answer

-28

Answer

68

Answer

36

Answer

-60

Question 11

Is it a function?

Accepted Answer

Yes

Answer

No

Question 12

Identify the domain:

Accepted Answer

{3, 4, 5}

Answer

{3, 4, 5, 6, 7}

Answer

{6, 7}

Question 13

Identify the range:

Accepted Answer

{6, 7}

Answer

{3, 4, 5, 6, 7}

Answer

{3, 4, 5}

Question 14

Multiply (2x + 3)(2x - 3)

Accepted Answer

4x2 - 9

Answer

4x² - 12x + 9

Answer

4x² + 12x - 9

Answer

4x2 + 9

Polynomial Functions

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