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Review for Midterm

Total questions: 86

Worksheet time: 2hrs 18mins

Name
Class
Date
1.

What is the x-intercept (the value of x when y equals 0) of the equation 8x - 3y = 6

a)

-2

b)

8

c)

-3

d)

34\frac{3}{4}

2.

What is the slope and y-intercept in the equation
 y=25x5y=\frac{2}{5}x-5  

a)

slope = -5

b)

slope =  25\frac{2}{5}  

c)

y-int =  25\frac{2}{5}  

d)

y-int= -5

3.

Select ALL equations that represent the graph above

a)

2x5y=102x-5y=10

b)

y=25x2y=\frac{2}{5}x-2

c)

5x2y=105x-2y=10

d)

y=25x2y=-\frac{2}{5}x-2

4.

What are the x and y intercepts of the graph above?

a)

x-int=(0,3)

b)

x-int=(3,0)

c)

y-int=(-5,0)

d)

y-int=(0,-5)

5.

What is the domain and range for (1,2)(2,5)(5,5)(8,0)(3,2)

a)

d ={1,2,3,5,8}

b)

r ={0,2,2,5,5}

c)

d ={0,2,5}

d)

r = {0,2,5}

6.

Evalutate the function f(m) = 7 - 3m when m = 4

a)

16

b)

5

c)

-5

d)

0

7.

Sara took a walk to the park from home. When part of the graph would represent Sara's time at the park?

a)

A

b)

B

c)

C

d)

None of the above

8.

Steve joined a gym with a first month deposit of $50 and a $20 monthly fee every month after that. How much will Steve spend for an entire year of membership? Write the explicit form of the equation and find the correct answer.

a)

f(m) = 20 + (m-1)(50)

b)

f(m) = 50 +20(m)

c)

f(m) = 50+(m-1)(20)

d)

$570

e)

$270

9.
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.
10.
a)
Function
b)
Not a Function
11.
Is this mapping a function or not a function? 
a)
Function
b)
Not a Function
12.
Is this table a function or not a function? 
a)
Function
b)
Not a Function
13.
Is this table a function or not a function? 
a)
Function
b)
Not a Function
14.
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)
15.
Is this graph a function or not a function? 
a)
Function
b)
Not a Function
16.
Is this graph a function or not a function? 
a)
Function
b)
Not a Function
17.
Is this graph a function or not a function? 
a)
Function
b)
Not a Function
18.
Is this graph a function or not a function? 
a)
Function 
b)
Not a Function 
19.
Is this graph a function or not a function? 
a)
Function
b)
Not a Function 
20.
Is this graph a function or not a function? 
a)
Function 
b)
Not a Function
21.
Give the domain and range. Tell if it is a function.
a)
D: {-4, -2, 0, 2}
R: {-2, -2, 1, 1}
Function
b)
D: {-4, -2, 0, 2}
R: {-2, 1}
Function
c)
D: {-4, -2, 0, 2}
R: {-2, -2, 1, 1}
Not a Function
d)
D: {-4, -2, 0, 2}
R: {-2, 1}
Not a Function
22.
For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.
a)
D: {1, -3, -4,}
R: {0, 1, 2, -4}
b)
D:{0, 1, 2, -4}
R:{1, -3, -4}
c)
D:{0, 1, 2, 3, 4}
R:{1, -3, -4}
23.
What is the range of the following relation:
(9, -2) (4, 3)  ( 8, 10) ( -4, 8)
a)
-4, 4, 8, 9
b)
-2, 3, 8, 10
c)
(9, -2) ( 4, 3)
d)
(8, 10) (-4, 8)
24.

A slope where the line increases from left to right (or goes uphill) is a ___________________ slope.

a)

Positive Slope

b)

Negative Slope

c)

Zero Slope

d)

Undefined Sloped

25.

Which of the following types of slope represents the linear relationship given?

a)

Positive Slope

b)

Negative Slope

c)

Zero Slope

d)

Undefined Slope

26.

A vertical slope is called a _________________________.

a)

Positive Slope

b)

Negative Slope

c)

Zero Slope

d)

Undefined Slope

27.

The given table is a function.

a)

True

b)

False

28.

When given a horizontal line as a slope, this is a ___________________________.

a)

Positive Slope

b)

Negative Slope

c)

Zero Slope

d)

Undefined Slope

29.

The given graph is a function.

a)

True

b)

False

30.
What type of graph is this?
a)
Bar Graph
b)
Histogram
c)
Line Plot
31.
How many employees have a salary less than $22,000?
a)
50
b)
350
c)
0
d)
10
32.
How many students scored between a 86 and a 90?
a)
1
b)
3
c)
6
d)
10
33.

Which interval has the greatest number of students?
a)
48-51
b)
56-59
c)
60-63
d)
64-67
34.
How many students are between 48 and 51 inches tall?
a)
14
b)
8
c)
2
d)
0
35.
How many people watched between 6 and 10 hours of TV last week?
a)
31
b)
22
c)
15
d)
35
36.
What was the exact price most people payed for a gallon of gas?
a)
$2.10
b)
$1.95
c)
$2.03
d)
We can not tell using the histogram
37.

How many trees are at least 15 feet tall?

a)

12 trees

b)

2 trees

c)

9 trees

d)

41 trees

38.

The height of the students in Mrs. Abel's class were recorded. Which line plot represents the same data shown in the histogram?

a)
b)
c)
d)
39.

Find the median of these numbers:

2, 5, 4, 3, 7, 5, 5,

a)

4

b)

5

c)

3

d)

6

40.

In order to find the median, the very first thing you must do is to..

a)

find the difference between biggest and the smallest number.

b)

find the middle number

c)

list the numbers in order

d)

find the most repeated number

41.
Find the median.
12, 5, 9, 18, 22, 25, 5
a)
9
b)
8
c)
12
d)
18
42.
What percent of students have a height between 58 inches and 60 inches?
a)
25%
b)
50%
c)
75%
d)
100%
43.
What percentage of the data is between 90 and 140?
a)
25 %
b)
50%
c)
75%
d)
100%
44.

What is the upper quartile of the set of data; 2, 4, 6, 6, 7, 8, 10

a)

4

b)

6

c)

8

d)

2

45.

Determine the IQR for this set of data. 12, 13, 14, 15, 17, 18, 19, 19, 22, 23

a)

14

b)

5

c)

17.5

d)

19

46.
Find the Maximum
a)
68
b)
98
c)
85
d)
93
47.
Find the Minimum
a)
98
b)
85
c)
68
d)
93
48.
Which is NOT ture?
a)
The spreads of the low temperatures for Reybold and Picktown are not the same
b)
Neither box plot is symmetrical
c)
The median low temeratures for Reybold and Picktown are different
d)
The lower extreme for Picktown is approximately 5 degrees lower than the lower extreme for Reybold
49.

Type of Data arrangement

a)

Symmetrical

b)

Hairline

c)

Skewed Right

d)

Skewed Left

50.
What is the shape of the data for Lucy's Steakhouse?
a)
Symmetrical
b)
Skewed Left
c)
Skewed Right
51.
a)

Skewed up box

b)

Skewed to the left

c)

Skewed to the right

52.
What is the shape of the distribution?
a)
Skewed Left 
b)
Skewed Right
c)
Symmetric
d)
Bimodal
53.
What is the shape of the distribution?
a)
Skewed Left 
b)
Skewed Right
c)
Symmetric
d)
Bimodal
54.
What is the shape of the distribution?
a)
Skewed Left 
b)
Skewed Right
c)
Symmetric
d)
Bimodal
55.
Describe the histogram:
a)
Left Skewed
b)
Symmetrical
c)
Right Skewed
d)
Uniform
56.
How would you describe this distribution?
a)
Left skewed
b)
Uniform
c)
Right Skewed
d)
Symmetrical
57.
Which of the following best describes the shape of the distribution?
a)
SKEWED LEFT
b)
SKEWED RIGHT
c)
UNIFORM
d)
SYMMETRICAL
58.
Which of the following best describes the shape of the distribution?
a)
SKEWED LEFT
b)
SKEWED RIGHT
c)
UNIFORM
d)
SYMMETRICAL
59.
Which of the following best describes the shape of the distribution?
a)
SKEWED LEFT
b)
SKEWED RIGHT
c)
UNIFORM
d)
SYMMETRICAL
60.

How would you describe this data?

a)

Skewed Left

b)

Skewed Right

c)

Symmetrical

d)

A total amount

61.

The Miller Football Team holds a car wash to raise money. The team spends $12.50 on supplies and charges $5.00 per carwash. Write an equation to represent the amount of profit.

a)

y = 12.50x + 5.00

b)

y= 5.00x + 12.50

c)

y=5.00x - 12.50

d)

y= 12.50x - 5.00

62.

Jane has a giftcard for $25 for CoffeeBux. She buys a $3.00 drink everyday with her giftcard. Write an equation to represent the situation.

a)

y= - 3.00x + 25

b)

y= 25x + 3.00

c)

y= -3.00x - 25

d)

Y=3.00x +25

63.

A balloon is released from the top of a 50-foot building. The balloon rises at a rate of 2 feet per second. What equation represents the height of the balloon after x seconds?

a)

y= 50x

b)

y=2x

c)

y= 2x +50

d)

y= 50x + 2

64.

An art studio charges $45 per month for art lessons. There is a registration fee of $30 when you first sign up. Which equation best describes the total cost, y, given the number of months, x?

a)

y= 45x - 30

b)

y= 75x

c)

y= 30x + 45

d)

y= 45x + 30

65.

Mrs. Rodriguez plants a 4-inch tomato plant in her garden. The tomato plant grows at a rate of 2 inches per week. what equation would show the relationship?

a)

y= 2x + 4

b)

y= 0.5x + 4

c)

y= 4x + 2

d)

y= 2x - 4

66.

The temperature for December 1st in Denver, Colorado started at 45 degrees. During the day, the temperature increased by 3 degrees per hour. What equation can represent this situation?

a)

y= -1x - 45

b)

y= -3x + 45

c)

y= 3x + 45

d)

Y= 1x + 45

67.

Music Rental Warehouse rents trumpets for $23 per month. A cleaning fee of $40 is charged when you return the instrument. What is the cost of renting a trumpet for x months?

a)

y= -23x -40

b)

y= 40x + 23

c)

y= 23x + 40

d)

y= 63x

68.

A water tank is filled with 100 gallons of water. Susanne drains water out of the tank at a rate of 2.3 gallons per hour. What is the equation that will represent this situation?

a)

y=- 2.3x + 100

b)

y= 2.3x + 100

c)

y= -2.3x - 100

d)

y= 100x - 2.3

69.

Mr. Macaroni goes to WallyWorld and buys turkey from the deli for $3.45 per pound. He also buys a loaf of bread for $0.96. What equation can be used to represent the total cost of Mr. Macaroni's trip to WallyWorld?

a)

y= 0.96x + 3.45

b)

y= 0.96x - 3.45

c)

y= 3.45x - 0.96

d)

y= 3.45x + 0.96

70.

Which equation matches the table?

a)

f(x) = x + 5

b)

f(x) = 5x

c)

f(x) = x - 5

d)

f(y) = y - 5

71.

What is the algebraic equation for this table?

a)

f(x) = x + 3

b)

f(x) = 3x

c)

f(x) = x ÷ 3

d)

f(x) = x - 3

72.
Which equation matches the table?
a)
y = x 
b)
y = 5x
c)
y = x - 4
d)
y = x + 4
73.
What is the algebraic equation for this table?
a)
y = 480x
b)
x = y/480
c)
x + 480 = y
d)
480 - x = y
74.
What is the equation of the linear function?
a)
y = -3x + 10
b)
y = -3x + 16
c)
y = 3x + 10
d)
y = 3x + 16
75.
Jenny writes the equation y = 1/2x +5.
Why is she incorrect?
a)
The slope is -2, the equation should be
y = -2x + 5
b)
The y-intercept is 4, the equation should be y = -2x + 4
c)
The slope is -1/2, the equation should be
 y = -1/2x + 5
d)
The y-intercept is -5, the equation should be y = -2x - 5
76.
Write the equation that best matches the graph shown.
a)
y = 4x
b)
y = 4x - 3
c)
y = 4/3 x + 4
d)
y = 4/3 x - 3
77.
What is the equation of this line in slope-intercept form?
a)
y = 2x + 5
b)
y = -2x + 5
c)
y = -2x
d)
y = 5
78.
What is the equation of this line?
a)
0
b)
undefined 
c)
y = -2
d)
x = -2
79.

Write an equation in slope-intercept form from the points (-4, -2) and (-3, 5)

a)

y = 1/7x

b)

y = 1/7x + 26

c)

x = 7y + 26

d)

y = 7x + 26

80.
Write an equation in slope-intercept form from the points (0, 3) and (-4, -1)
a)
y = x + 3
b)
y =  x - 3
c)
y = x + 1
d)
y = 3x + 1
81.

Write a linear function that has a slope of -2 and passes through the point (-3, 4).

a)

f(x) = -2x - 2

b)

f(x) = -2x + 4

c)

f(x) = =2x + 3

d)

f(x) = -2x + 2

82.
Solve for x:
8x - 10 = -34
a)
4
b)
3
c)
-3
d)
-24
83.
Solve:
3(x - 2) = 18
a)
6.7
b)
4
c)
8
d)
-4
84.
Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20
a)
They should have divided by 1 for the last step
b)
They should add 19 instead of subtracting 19
c)
I can not find an error
d)
Instead of adding 3k they should subtract 3k
85.
The steps in solving 5b - 6 = 24 are: 
a)
Add 6 to both sides and divide both sides by 5
b)
Add 6 to both sides and multiply both sides by 5
c)
Subtract 6 from both sides then multiply both sides by 5
d)
Subtract 6 from both sides then divide both sides by 5
86.
Solve.   n - (-2) = -14
a)
-16
b)
16
c)
12
d)
-12