Quiz about Quiz Review 01/05

Question 1

Does the table represtent a function?

Accepted Answer

Yes

Answer

No

Question 2

Does the graph represent a function?

Accepted Answer

No

Answer

Yes

Question 3

The list of ordered pairs represents a function:

(12, 6), (3, 1), (2, -2), (5, 10), (-8, -4), (__,__)

What could be the missing ordered pair?

Accepted Answer

(-3, -4)

Answer

(2, 1)

Answer

(12, 7)

Answer

(-8, 8)

Question 4

Rita works at a gym where she gets paid $450 each week plus $15.50 for any new gym memberships she sells. If y represents the total pay per week and x represents the number of new memberships sold, which of the following equations represents a higher rate per membership sold?

Accepted Answer

y = 33/2 x + 425

Answer

y = 31/3 x + 500

Answer

y = 15x + 425

Answer

y = 15.05x + 475

Question 5

The Smith's are hiring painters, and the painting companies they've narrowed it down to charge based on the number of square feet. Company A charges $2.25 per square foot. Company B's rates are shown in the table. Which company would give their family the lowest cost per square foot?

Accepted Answer

Company B

Answer

Company A

Question 6

Which table represents a linear relationship?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Question 7

The list of ordered pairs represents a function:

(12, 6), (3, 1), (2, -2), (5, 10), (-8, -4), (__,__)

What could be the missing ordered pair?

Accepted Answer

(-3, -4)

Answer

(2, 1)

Answer

(12, 7)

Answer

(-8, 8)

Question 8

Who has the greater rate of change?

Accepted Answer

CJ has a greater rate of change with 13/2

Answer

Holland has a greater rate of change with 6

Answer

CJ has a greater rate of change with 2/13

Answer

They have the same rate of change.

Question 9

Which kitten grows fastest? What is it's rate of change?

Accepted Answer

Kitten A with a rate of change of 4

Answer

Kitten A with a rate of change of 3

Answer

Kitten B with a rate of change of 4

Answer

Kitten B with a rate of change of 3

Question 10

Which set of ordered pairs is a function?

Accepted Answer

{(6,-5), (7, -3), (8, -1), (9, 1)}

Answer

{(9,5), (10,5), (9,-5), (10,-5)}

Answer

{(3,4), (4,-3), (7,4), (3, 8)}

Answer

{(2, -2), (5, 9), (5, -7), (1, 4)}

Question 11

Does the graph represent a function?

Accepted Answer

No

Answer

Yes

Question 12

Does the table represtent a function?

Accepted Answer

Yes

Answer

No

Question 13

Samantha graphs a circle on a coordinate plane and says she has graphed a function. Do you agree or disagree, and why?

Accepted Answer

No. Since some inputs give more than one output, a circle is not a function.

Answer

Yes. Every input has exactly one output. A circle would pass the vertical line test.

Question 14

Which of the following tables represents a function?

Accepted Answer

Tables 1, 3, and 4 only

Answer

Table 1 only

Answer

Table 3 only

Answer

Table 4 only

Answer

Tables 1 and 3 only

Question 15

How do you determine if a relation is a function?

Accepted Answer

The vertical line test crosses only one point on the graph.

Answer

The vertical line test crosses more than one point on the graph.

Answer

The same y-values are mapped from the same x-values.

Answer

Each input is related to more than one output.

Question 16

Which set of ordered pairs is a function?

Accepted Answer

{(6,-5), (7, -3), (8, -1), (9, 1)}

Answer

{(9,5), (10,5), (9,-5), (10,-5)}

Answer

{(3,4), (4,-3), (7,4), (3, 8)}

Answer

{(2, -2), (5, 9), (5, -7), (1, 4)}

Question 17

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 18

Which graph is linear?

Accepted Answer

Graph D

Answer

Graph A

Answer

Graph B

Answer

Graph C

Question 19

Is the relation a function? Explain.

Accepted Answer

No, the x-value 11 has two y-values paired with it.

Answer

Yes, the x-value 11 has two y-values paired with it.

Answer

Yes, each x-value has only one y-value paired with it.

Answer

No, each x-value has only one y-value paired with it.

Question 20

You can identify a function from a graph by using the.....

Accepted Answer

Vertical Line Test

Answer

Horizontal Line Test

Answer

Eye Test

Answer

Diagonal Line Test

Quiz Review 01/05

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