A)
B)
C)
D)
83)
-3y = – 10
38
A)
B)
C)
D)
84)
-4x =-9
39
A)
B)
C)
D)
85)
6x – 13 = 0
40
A)
B)
C)
D)
Write an equation for the graph.
86)
A)
x =4
B)
y = x + 8
C)
D)
y = x + 4
87)
A)
x =3
B)
y = x + 6
C)
D)
y = x + 3
Find the slope of the line.
88)
A)
7
B)
–1
C)
D)
1
89)
A)
6
B)
–6
C)
D)
–1
90)
A)
–1
2
B)
1
2
C)
D)
2
91)
A)
–1
4
B)
–4
C)
D)
1
4
92)
A)
3
2
B)
0
C)
D)
Undefined
93)
A)
0
B)
7
6
C)
D)
Undefined
Graph the line containing the given pair of points and find the slope.
94)
(-7, 0) (-1, –1)
44
A)
-6
B)
1
6
C)
– 1
6
D)
6
95)
(1, 7) (0, 0)
45
A)
7
B)
– 1
7
C)
-7
D)
1
7
96)
(2, -8) (–1, 4)
46
A)
– 4
B)
– 1
4
C)
4
D)
1
4
97)
(3, 5) (–4, 5)
47
A)
0
B)
0
C)
1
D)
1
98)
(8, 5) (1, 7)
48
A)
– 7
2
B)
7
2
C)
– 2
7
D)
2
7
Find the slope of the line going through the pair of points.
99)
(-8, -9), (5, -6)
A)
3
13
B)
1
11
C)
D)
13
3
A
100)
(2, -9), (2, -1)
A)
– 9
8
B)
8
C)
D)
– 8
9
C
101)
(1, 6), (-3, 6)
A)
1
B)
0
C)
D)
15
B
102)
(-2, 0), (0, 7)
A)
3.5
B)
-0.29
C)
D)
-3.5
A
C
103)
(6.3, -9.4), (1.6, -4.4)
A)
-1.1
B)
-4.7
C)
D)
5
104)
(1
6, -5), ( 1
3, -2)
A)
18
B)
1
2
C)
D)
1
18
A
Find the slope of the line.
105)
2x + 3y =15
A)
2
3
B)
–
2
3
C)
D)
3
2
B
106)
-5y =-3x – 21
A)
–
5
3
B)
3
5
C)
D)
5
3
B
107)
3x – 5y =24
A)
3
5
B)
–
3
5
C)
D)
–
5
3
A
108)
2x – 5y =-14
A)
–2
5
B)
2
5
C)
D)
21
2
B
109)
x =-3
A)
3
B)
0
C)
D)
Undefined
D
110)
y =-2
A)
-2
B)
0
C)
D)
Undefined
B
Solve the problem.
111)
Kannanaski Rapids drops 57 ft vertically over a horizontal distance of 864 ft. What is the slope of the rapids?
A)
-57
B)
-0.001
C)
D)
-15.2
C
112)
Over one particular stretch of road, the Whitepoint Highway rises 551 ft over a horizontal distance of 3100 ft.
Find the grade of the road.
A)
0.06%
B)
8.9%
C)
D)
4.4%
A
113)
Let x =28 and y =7. Find the pitch of the roof.
A)
1
3
B)
1
2
C)
D)
1
4
114)
An old house has a basement stairway that has steps with 7.25 inch risers and 10 inch treads. What is the slope
of the stairway?
A)
2.75
B)
0.73
C)
D)
1.38
115)
The following graph shows data for a recent train ride from New York to Toronto. Find the rate of change of the
distance from New York with respect to time, in miles per hour.
Time of Day (PM)
A)
40 miles per hour
B)
50 miles per hour
C)
D)
55 miles per hour
116)
Data regarding the amount spent by a government department is represented in the following graph. Find the
rate of change of the amount spent with respect to time, in billions per year.
Year
A)
Increase of $0.28 billion per year
B)
Decrease of $0.28 billion per year
C)
Decrease of $0.38 billion per year
D)
Increase of $0.18 billion per year
117)
The value of a particular computer system is represented in the following graph. Find the rate of change of the
value of the computer system with respect to time, in dollars per year.
A)
–$250 per year
B)
–$500 per year
C)
D)
–$750 per year
118)
The value of a particular car is represented in the following graph. Find the rate of change of the value of the
car with respect to time, in dollars per year.
A)
–$600 per year
B)
–$700 per year
C)
D)
–$800 per year
Answer the question.
119)
True or False? The y–coordinate is positive in quadrants I and IV.
A)
False
B)
True
120)
True or False? The ordered pair (0, 0) determines a point in quadrant I with x–coordinate 0 and y–coordinate 0.
A)
True
B)
False
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
121)
Explain how you would find the x intercept of a line with an equation of the form
Ax + By = C.
122)
What can you say about the graph of Ax + By = C if B is equal to zero?
123)
What can you say about a line if every point on the line has the same x coordinate?
124)
Is it possible for the x–intercept and the y–intercept of a straight line to be at the same point? Explain your
answer.
125)
What is the y–intercept of the line y = b?
126)
Does every straight line have an x–intercept? If not, give an example of an equation whose graph does not have
an x–intercept.