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Review for Test Unit 2 and 4

Total questions: 60

Worksheet time: 5hrs 0mins

Name
Class
Date
1.
Is this mapping a function or not a function? 
a)
Function
b)
Not a Function 
2.
Is the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}
a)
Yes
b)
No
3.
Is this table a function or not a function? 
a)
Function
b)
Not a Function
4.
Is the relation a function? Why.
a)
Yes, because the x-value 11 has two y-values pair with it.
b)
Yes, because each x-value has only one y-value paired with it.
c)
No, because the x-value 11 has two y-values pair with it.
d)
No, because each x-value has only one y-value paired with it.
5.

Is this a function or not?

a)

Function

b)

Not a Function

6.

Is this a function?

a)

Yes

b)

No

c)

Let me ask my dog...

d)

Why are there letters in math?

7.

Which set of values is a function?

a)

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

b)

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

c)

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

d)

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

8.

Which set of values is not a function?

a)

{(9,5) (10,5) (4,-5) (8,-5)}

b)

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

c)

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

d)

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

9.
Is this set of ordered pairs a function or not a function? 
a)
Function
b)
Not a Function 
10.
Choose the best answer that describes the image.
a)
Function
b)
Relation
c)
Function and Relation
d)
Neither a relation nor a function
11.
What is a set of ordered pairs?
a)
relation
b)
volume
c)
translation
d)
pythagorean theorem
12.
A relation is a function when.......
a)
the input is only with one output.
b)
the input is repeating with different output.
c)
the output is repeating.
d)
the input is repeating.
13.
Which of these tables represent a function?
a)
A
b)
B
c)
C
d)
D
14.
a)
It is a function because each x has only one y.
b)
It's not a function because an x has multiple y's.
c)
It's not a function because a y has multiple x's.
d)
It is a function because each y has only one x.
15.
a)
Function
b)
Not a Function
16.
a)
Function
b)
Not a Function
17.
Is this mapping a function and how can you tell?
a)
Yes its a function cause all the numbers have lines
b)
No it's not a function because there a 5 in both ovals
c)
No it's not a function because the x value 5 has y values of  2 & 9
d)
No it's not a function because the y value 5 has x values of  2 & 9
18.
Is the relation a function?{(1,5),(1,7),(3,9),(4,11)}
a)
Yes
b)
No
19.
Is this table a function and how can you tell?
a)
Yes its a function because there are not variables for missing numbers
b)
No it's not a function because the y value 4 repeated
c)
No it isn't a function because the x value 2 is repeated
d)
No it's not a function because the x value 5 has y values of  10 & 12
20.
Which of the following guarantees a set of ordered pairs will not be a function?
a)
An x value repeats
b)
A y value repeats
c)
An x value repeats and has different y values
d)
A y value repeats and has different x values
21.
Which of the following guarantees a table will not be a function?
a)
An x value repeats
b)
A y value repeats
c)
An x value repeats and has different y values
d)
A y value repeats and has different x values
22.
Which of the following guarantees a mapping will not be a function?
a)
A x value repeats
b)
An y value repeats
c)
An x value has two or more arrows leaving it
d)
A y value has two or more arrows arriving at it
23.
Which of the following best describes a function?
a)
A special relationship where each x and y are individually paired
b)
A special relationship where each x value has only one y value 
c)
A special relationship where each y value has only one x value 
d)
A special relationship where each the x and y value and always equal 
24.

A visual- representation of a relation in which an arrow associates each input with its output

a)

Function

b)

Ordered Pair

c)

Mapping

d)

Relation

25.

Shows the relationship between two elements, written in a specific order using parentheses notation and a comma separating the two values.

a)

Function

b)

Ordered Pair

c)

Mapping

d)

Relation

26.

A relation in which each input is paired with exactly one output

a)

Function

b)

Ordered Pair

c)

Mapping

d)

Relation

27.
Which relation is NOT a function?
a)
{(1,-5), (3,1), (-5,4), (4,-2)}
b)
{(2,7), (3,7), (4,7), (5,8)}
c)
{(1,-5), (-1,6), (1,5), (6,-3)}
d)
{(3,-2), (5,-6), (7,7), (8,8)}
28.

As the amount of rain decreases, so the does the water level of the river. What is the independent variable?

a)

the amount of rain

b)

the river.

c)

the water level.

d)

decreasing rain.

29.

The faster you drive your car, the longer it will take to stop.

What is the dependent variable?

a)

the car

b)

the speed of the car

c)

the length of the car.

d)

stopping distance of the car

30.
A relation where every input yields one and only one output is called what?
a)
Relation
b)
Linear
c)
Exponential
d)
Function
31.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
32.
How would you write 0.0005 in scientific notation?
a)
50 x 105
b)
5 x 104
c)
5 x 103
d)
.5 x 103
33.
Scientific Notation is made up of two number parts. The first part should be a number between 1 and 100.
a)
True
b)
False
34.
Scientific Notation is made up of two number parts. The second part is a power of base 10.
a)
True
b)
False
35.

When writing a number in scientific notation, the first number must be greater than or equal to 1, but less than 10.

a)
False
b)
True
36.
The rule of scientific notation is to write all exponents with a base of ____.
a)
50
b)
5
c)
100
d)
10
37.
How do you write
8.317 x 106
in standard form?
a)
8, 371, 000
b)
83, 170, 000
c)
837, 100
d)
8, 317, 000
38.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
39.
What is scientific notation?
a)
A long way to write really short  numbers
b)
A short way to write really long numbers
c)
I don't know...
d)
None of the above
40.
UNDERSTANDING
If the exponent is a positive number...
a)
you will get a large number
b)
you will get a smaller number
41.
UNDERSTANDING
If the exponent is a negative number...
a)
you will get a large number
b)
you will get a small number
42.

Write the answer in scientific notation.

5.3 x 105 + 3.7 x 105 =

a)

99.0 x 105

b)

9.9 x 1010

c)

8.0 x 105

d)

9.0 x 105

43.
Write the answer in scientific notation.
5 x 108 -   3.4 x 108  =
a)
2.4 x 108
b)
2.4 x 100
c)
1.6 x 100
d)
1.6 x 108
44.
Multiply:
(3.4 x 105)(1.2 x 10-3)
a)
4.08 x 10-8
b)
4.8 x 102
c)
4.08 x 102
d)
4.08 x 10-15
45.
Divide:
(6.9 x 107) / (2.3 x 10-3)
a)
3 x 1010
b)
3 x 104
c)
3 x 10-4
d)
3 x 10-11
46.
Solve:
(9 x 10-6) / (3 x 10-3) 
a)
27 x 10-9
b)
3 x 10-3
c)
3 x 10-9
d)
27 x 10-3
47.

Write the answer in scientific notation.

4.1 x 105 + 5.5 x 106 =

a)

5.91 x 106

b)

9.6 x 105

c)

9.6 x 1011

d)

4.65 x 105

48.

Which is the largest number?

4.8 x 10-6

1.3 x 1020

3.1 x 10-4

9.2 x 10-5

9.5 x 1032

5.9 x 10-5

2.9 x 1021

8.4 x 1019

a)

9.5 x 1032

b)

3.1 x 10-4

c)

8.4 x 1019

d)

4.8 x 10-6

49.

Find the difference.

(3.8 x 104) - (2 x 103)

a)

1.8 x 104

b)

1.8 x 101

c)

3.6 x 101

d)

3.6 x 104

50.
ANY number raised to a power of 0 will be....
a)
10
b)
itself
c)
1
d)
0
51.
The Pythagorean Theorem ONLY works on which triangle? 
a)
obtuse
b)
scalene
c)
isosceles
d)
right
52.
What is the opposite of squaring a number?
a)
divide
b)
multiply 
c)
fractions
d)
square root
53.
solve for x
a)
5552363959656.
b)
10
c)
100
d)
89
54.
solve for c
a)
7
b)
9
c)
4
d)
13
55.
What is the length of x?
a)
5
b)
7
c)
8
d)
25
56.
You need a ladder that will reach up a 25 foot tall house when placed 10 feet away from the house. How tall does the ladder need to be?
a)
25 feet
b)
26 feet
c)
27 feet
d)
28 feet
57.

The diagonal of a rectangle is 25 in. The width is 15 in. What is the length of the rectangle?

a)

20 inches

b)

29.2 inches

c)

400 inches

d)

625 inches

58.
Do the segment lengths 9, 12, and 15 form a right triangle?
a)
Yes
b)
No
c)
Maybe
d)
Pythagoras
59.
What is the side of a right triangle across from the right angle called?
a)
square
b)
arm
c)
leg
d)
hypotenuse
60.
Find h
a)
35.60
b)
35.00
c)
35.71
d)
61.03

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