Download Unit 2 - Campbell County Schools

Unit 2
Integers, Number Lines
and the Coordinate
Plane
What number is the opposite of −42?
A.
B.
C.
D.
-42
0
42
-24
Which answer represents an elevation
of 82 feet below sea level?
A. -82
B. 82
C. 0
D. -82
Mr. Huber walks into the lobby at Campbell County
Middle School. He goes upstairs one level to get his
mail. Describe the integer that represents this
situation and what zero represents in this situation.
A. The integer that represents the situation is +1,
and zero represents the cafeteria.
B. The integer that represents the situation is – 1,
and zero represents Mr. Huber’s starting point
in the lobby.
C. The integer that represents the situation is + 1,
and zero represents Mr. Huber’s starting point
in the lobby.
D. The integer that represents the situation is ̶ 2,
and zero represents the floor of the library.
The numbers 10 and −10 are plotted on a
number line. All of the statements are
true except:
A. 10 and −10 are that same distance from zero
on the number line.
B. 10 and −10 are 20 units apart on the number
line.
C. 10 and −10 are both to the left of zero on the
number line.
D. 10 and −10 are opposites.
Locate the integer that is the
opposite of -6.
A
A. Point A
B. Point B
C. Point C
D. Point D
B
C
D
The number line below shows how much money
students spent and earned last week. Which
point represents a student that spent
C D
1
A B
5 dollars?
2
A.
B.
C.
D.
Point A
Point B
Point C
Point D
What is the integer that represents the
opposite of the opposite of 54?
A. -54
B. 54
C. 0
D. None of the above
If Leslie says her puppy weighs – (− 6.8)
pounds, which of the following is the
puppy’s weight?
A. -6.8
B. 6.8
C. 8.6
D. -8.6
What are the
coordinates of
Point A?
A. (-2, 3)
B. (3, -2)
C. (-2, -3)
D. (-3, 2)
A
1
8 ,
2
If the point (
−5 ) is reflected across
the y-axis, what are the coordinates of
the reflected point?
1
A. (−5, 8 )
2
1
B. (− 8 , 5 )
2
1
C. ( 8 , 5 )
2
1
D. (− 8 , −5 )
2
Jared wants to show the statement, “−14 is located to
the left of −12 on a horizontal number line” using an
inequality. Which of the following inequalities best
shows Jared’s statement?
A.
B.
C.
D.
−14 < −12
−14 > −12
−14 ≤ −12
−14 ≥ −12
The balance in Erin’s bank account is −$48.23. The
balance in Tom’s bank account is −$51.96. Which
inequality shows the relationship between the
balance in Erins’s bank account and the balance in
Tom’s bank account?
A.
B.
C.
D.
−$48.23 < −$51.96
−$48.23 > −$51.96
$48.23 > $51.96
$48.23 < $51.96
Given the inequality -11 < 3, which
statement describes how the position of
these two numbers will compare on a
number line?
A. -11 is to the left of 3 on a
horizontal number line.
B. -11 is to the right of 3 on a
horizontal number line.
C. -11 is above 3 on a vertical
number line.
D. -11 and 3 are the same distance
to zero on a number line.
Which of the following is NOT equal to
14?
A.
B.
C.
D.
| −14|
− | −14|
|14|
| − (− 14)|
Which statement is true about
absolute value?
A. Absolute Value is an integer’s distance
to zero.
B. The Absolute Value of a number is
always positive.
C. A number and its opposite have the
same Absolute Value.
D. All of the above.
Nathan and Nicole both enter elevators on the
same floor. Nathan goes up 11 floors and Nicole
goes down 12 floors. Who is closer to the floor
they both started on?
A. Nathan
B. Nicole
C. They are the same distance to
the beginning floor.
D. They are on the same floor.
Ron has a debt of (owes) -$45 and Becca has
a debt of -$70. What do their absolute values
tell you about their debts?
A. They have the same
amount of debt.
B. Ron has more debt.
C. Becca has more debt.
D. Neither of them are in
debt.
Which situation could represent
│-25│?
A.
B.
C.
D.
25 meters below sea level
Sue has $25.
A kite flying 25 feet in the sky.
A gain of 25 yards in a football
game
Joey graphed a rectangle in the coordinate plane.
Two vertices of the rectangle are located at
( −6, 7 ) and ( −6, −3 ). The length of the rectangle
is 20 units. Which answer is another vertex
(corner) of the rectangle that Joey graphed?
A.
B.
C.
D.
( −6, 3)
( −7, 3 )
( −14 , -7)
( 14, 7)
If Devin walked from his house located at point
( 8, 6 ) to the library located at point ( −4, 6),
how many units did he walk?
A.
B.
C.
D.
2 units
12 units
10 units
4 units
Order the following numbers from least
to greatest. -4, 9, -8, 2, -7
A. 9, 2, -4, -7, -8
B. -4, -7, -8, 2, 9
C. 2, 9, -8, -7, -9
D. -8, -7, -4, 2, 9