1.
What is the slope of
in parallelogram
ABCD
?
A.
B.
C.
D.
Hint
2.
Which equation is the slope-intercept form of the equation of the line that passes through (1, 2) and is parallel to 4
x
- 2
y
= 6?
A.
y
= 2
x
B.
y
= 4
x
+ 3
C.
D.
y
= -2
x
+ 1
Hint
3.
Three out of the four equations listed below are equations of lines that are parallel to each other. Which equation
does not
have a graph that is a line parallel to the other three?
A.
3
x
+ 4
y
= -16
B.
8
y
= - 6
x
C.
D.
Hint
4.
The table shows the possible lengths and widths of a rectangle that has an area of 72 square centimeters. Make a scatter plot of the data.
A.
B.
C.
D.
Hint
5.
The graph of a linear function is _______.
A.
a horizontal line only
B.
None of these is correct
C.
a straight line
D.
a curved line
Hint
6.
The graph of
y
= -4
x
2
- 1 is _____.
A.
None of these is correct.
B.
a circle
C.
a parabola
D.
a straight line
Hint
7.
Find the equation that has direct variation.
A.
y
= 5
x
+ 1.3
B.
y
= 0.8
x
+ 9
C.
y
= 4
x
D.
y
= –3
x
– 1
Hint
8.
Find the graph that does not have direct variation.
A.
B.
C.
D.
Hint
9.
Find the table that represents a graph with direct variation.
A.
B.
C.
D.
Hint
10.
Pam's mother gives Pam $20 each week for lunch to be bought at the school cafeteria. Lunches cost $4 per day. Draw a graph showing the amount Pam has left decreasing very slowly. Suppose you graph the time in days on the horizontal axis and the amount Pam has left on the vertical axis.
A.
B.
C.
D.
Hint
11.
Which table shows a quadratic relationship?
A.
B.
C.
D.
Hint
12.
How many diagonals are connected to each vertex for a 25-sided polygon?
A.
20
B.
25
C.
21
D.
22
Hint
13.
Which equation is in the same family as
y
=
x
2
?
A.
y
= 2
x
2
– 3
B.
y
=
x
3
– 3
C.
y
= 2
x
– 3
D.
y
=
x
2
– 3
Hint
14.
Find the equation of the graph below.
A.
y
= (
x
- 3)
2
B.
y
=
x
2
– 3
C.
y
=
x
2
+ 3
D.
y
= (
x
+ 3)
2
Hint
15.
How does
a
affect graphs of equations in the form of
?
A.
negative values of
a
move the graph to the left, positive values move it to the right
B.
a
affects the width of the graph
C.
a
affects the length of the graph
D.
positive values of
a
move the graph to the left, negative values move it to the right
Hint
16.
How does
b
affect graphs of equations in the form of
?
A.
positive values of
b
move the graph to the left, negative values move it to the right
B.
b
affects the length of the graph
C.
b
affects the width of the graph
D.
negative values of
b
move the graph to the left, positive values move it to the right
Hint
17.
What are the second differences in the
y
-values?
A.
–1
B.
1
C.
0
D.
2
Hint
18.
What type of relationship does the equation have if its second differences are constant?
A.
linear
B.
quadratic
C.
constant
D.
cubic
Hint
19.
How many counterexamples are needed to prove a conjecture wrong?
A.
2
B.
1
C.
4
D.
3
Hint
20.
Find the values for
m
and
n
which the conjecture (
m – n
)
2
=
m
2
– n
2
is false.
A.
m
= 1,
n
= 1
B.
m
= 1,
n
= 0
C.
m
= –2,
n
= 0
D.
m
= 1,
n
= 2
Hint