Unit Test — Unit test Answers

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Which statement is true about the value of ?

Question illustration
A
StartAbsoluteValue 6 EndAbsoluteValue greater-than 6
Option A
B
StartAbsoluteValue 6 EndAbsoluteValue less-than 6
Option B
C
is the distance between 0 and 6, and the distance is always positive regardless of direction.
Option C
D
is the distance between 6 and 0, and the distance is negative from 6 to 0.
Option D
2
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The table shows how many degrees the actual temperature was above (+) or below (–) the forecast each day.Which day was the weather forecast most accurate (closest to the forecast)? DayDegrees above (+) or below (–) forecastMonday+4Tuesday–6Wednesday+7Thursday–2

A
Monday
B
Tuesday
C
Wednesday
D
Thursday
3

Which person in the high rise building is closest to the street level?

A
Moira is in her doctor’s office on the fourth floor.
B
Geoffrey is in the elevator between the second and third floors.
C
Sandy is in the laundry room on the –2 basement floor.
D
Hasim is leaving the parking garage and is currently between –1 and –2 levels.
4

Which number is equal to ?

Question illustration
A
–15
B
–9
C
9
D
15
5

What is another word for magnitude?

A
large
B
size
C
small
D
attract
6

Kayla claims that the absolute value of a number is always greater than the number itself. Which statement about her claim is true?

A
Kayla is correct. Any positive number is greater than a negative, and absolute value of a number is always positive.
B
Kayla is correct. The distance between 0 and a number is always more than the number.
C
Kayla is incorrect. The absolute value of a positive number is negative, and negative numbers are less than positive numbers.
D
Kayla is incorrect. The absolute value of 0 or a positive number is equal to the number.
7

Oscar bought shares in four different stocks. The chart below shows the changes in the stocks’ values over the past week. Which stock is closest to its purchase price?Oscar’s StocksStockChangeABC Toys–$3Golden Grains+$4Fast Cars–$8XYZ Clothing+$1

A
ABC Toys
B
Golden Grains
C
Fast Cars
D
XYZ Clothing
8

Which list correctly orders A, B, and C from least to greatest when A = , B = –6, and C = ?

Question illustration
A
A, B, C
B
B, C, A
C
C, B, A
D
A, C, B
9

Ethan claims that . Which statement about Ethan’s claim is true?

Question illustration
A
Ethan is correct because and so –7 + 3 = 4. Plot –7 on a number line, and move right 3 to get –4 on the line.
Option A
B
Ethan is incorrect because and so . Plot 7 on a number line, and move right 3 to get 10 on the line.
Option B
C
Ethan is incorrect because the absolute value bars are grouping symbols so first you must subtract. , and .
Option C
D
Ethan is correct because the absolute value bars are grouping symbols so first you must subtract. , and .
Option D
10

Which graph represents the absolute value of –3?

A
A number line going from negative 5 to positive 5. The distance from negative 3 to 0 is labeled 3.
Option A
B
A number line going from negative 5 to positive 5. The distance from 0 to 3 is labeled negative 3.
Option B
C
A number line going from negative 5 to positive 5. The distance from negative 3 to positive 3 is labeled 6.
Option C
D
A number line going from negative 5 to positive 5. The distance from negative 3 to 3 is labeled negative 6.
Option D

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