Quiz about Understanding Functions

Question 1

What is the definition of function?

Accepted Answer

Every input has only ONE output

Answer

Has inputs and outputs

Answer

Inputs have different outputs every time

Answer

x-values and y-values

Question 2

Question 2.

Accepted Answer

Not a Function

Answer

Function

Question 3

Question 3.

Accepted Answer

Function

Answer

Not a Function

Question 4

Question 4.

Accepted Answer

Function

Answer

Not a Function

Question 5

Question 5.

Accepted Answer

Not a Function

Answer

Function

Question 6

Question 6.

Accepted Answer

Function

Answer

Not a Function

Question 7

Question 7.

Accepted Answer

Not a Function

Answer

Function

Question 8

Question 8.

Accepted Answer

Not a Function

Answer

Function

Question 9

Question 9.

Accepted Answer

Function

Answer

Not a Function

Question 10

Is the table pictures a linear relationship? Why or Why not?

Accepted Answer

Yes, it has a constant change

Answer

Yes, it does not have different rates of change

Answer

No, it has constant rate of change

Answer

No, it does not have a constant rate of change

Question 11

Is the table pictured a linear relationship? Why or Why not

Accepted Answer

No, it does not have a constant rate of change

Answer

Yes, it has a constant change

Answer

Yes, it does not have different rates of change

Answer

No, it has constant rate of change

Question 12

Choose the best situation for the graph.

Accepted Answer

A monkey swings from a high branch to a lower branch. He climbs along the branch. Then he jumps to a higher branch and takes a nap.

Answer

A car is moving at a constant speed for several minutes. When it approaches a red light, it slows down and comes to a stop.

Answer

A plant grows steadily and then has a growth spurt during the rainy season. It remains the same height for a while and then grows steadily again.

Answer

A family buys a fish tank and some fish. After two weeks, they buy some more fish. After two more weeks, they buy even more fish.

Question 13

Write 2x+y=24 in slope-intercept form.

Accepted Answer

y = -2x+24

Answer

y = 2x-24

Answer

y = 1/2 x + 24

Answer

y = -1/2 x + 24

Question 14

Does the equation represent a linear or nonlinear function?

Accepted Answer

nonlinear

Answer

linear

Question 15

Does the equation represent a linear or nonlinear function?

Accepted Answer

linear

Answer

nonlinear

Question 16

Which is it?
x² + y² =25

Accepted Answer

Non-linear

Answer

Linear

Question 17

Which is it?
y² + 7x = 1

Accepted Answer

Non-linear

Answer

Linear

Question 18

Question 18.

Accepted Answer

Function

Answer

Not a Function

Question 19

Question 19.

Accepted Answer

Not a Function

Answer

Function

Question 20

Would x = 7 be considered a function even though it graphs a line?

Accepted Answer

No.

Answer

Yes.

Understanding Functions

20 questions

What is the definition of function?

Is the table pictures a linear relationship? Why or Why not?

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