Exploring Slope — Test Answers

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1
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The first step to solve the equation is shown below.Which property was applied in this step?

Question illustration
A
Addition Property of Equality
B
Subtraction Property of Equality
C
Multiplication Property of Equality
D
Division Property of Equality
2
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What is another way to write the equation ?

Question illustration
A
7 (StartFraction x over 8 EndFraction) + three-fourths = negative 6
Option A
B
StartFraction 7 + 3 over 8 + 4 EndFraction x = negative 6
Option B
C
StartFraction 7 over 8 EndFraction + three-fourths x = negative 6
Option C
D
StartFraction 7 over 8 EndFraction x minus three-fourths = 6
Option D
4

Which equation, when solved, results in a different value of x than the other three?

A
8.3 = negative 0.6 x + 11.3
Option A
B
11.3 = 8.3 + 0.6 x
Option B
C
11.3 minus 0.6 x = 8.3
Option C
D
8.3 minus 0.6 x = 11.3
Option D
8

What is the value of x?

Question illustration
A
StartFraction 11 Over 36 EndFraction
Option A
B
One-third
Option B
C
1 and StartFraction 11 Over 16 EndFraction
Option C
D
1 and StartFraction 7 Over 16 EndFraction
Option D
13

The graph below models the value of a $20,000 car t years after it was purchased. Value of CarWhich statement best describes why the value of the car is a function of the number of years since it was purchased?

Question illustration
A
Each car value, y, is associated with exactly one time, t.
B
Each time, t, is associated with exactly one car value, y.
C
The rate at which the car decreases in value is not constant.
D
There is no time, t, at which the value of the car is 0.
14

A piece of climbing equipment at a playground is 6 feet high and extends 4 feet horizontally. A piece of climbing equipment at a gym is 10 feet high and extends 6 feet horizontally. Which statement best compares the slopes of the two pieces of equipment?

A
Because , the slope of the climbing equipment at the gym is greater.
Option A
B
Because , the slope of the climbing equipment at the playground is greater.
Option B
C
Because , the slope of the climbing equipment at the gym is greater.
Option C
D
Because , the slope of the climbing equipment at the playground is greater.
Option D
15

Michelle and Andrea are walking laps for charity. The amount of money, y, that each girl raises for a certain number of laps, x, is shown in the tables below.MichelleAndreaWhich statement explains who will raise $100 with the fewest number of laps?

Question illustration
A
Michelle will, because the slope of the line described by the data in her table is the greatest.
B
Andrea will, because the slope of the line described by the data in her table is the greatest.
C
Michelle will, because her number of laps are increasing at a faster rate.
D
Andrea will, because her number of laps are increasing at a slower rate.
16

The graph below displays the wrist circumferences and heights of six students in Alyssa’s classroom. Is the height of these students a function of their wrist circumference?

Question illustration
A
Yes because as wrist circumference increases height also increases.
B
Yes because a line can be fit to these data to predict other pairings.
C
No because the height of 151 cm is paired with two wrist circumferences.
D
No because the wrist circumference of 16 cm is paired with two heights.
17

This is Daniela’s work to solve the equation .Which property did Daniela need to use to avoid her error?

Question illustration
A
division property of equality
B
multiplication property of equality
C
subtraction property of equality
D
identity property of equality
20

Lin can type 192 words in 6 minutes. Hoi can type 112 words in 4 minutes. Which statement is true?

A
Hoi can type 4 more words per minute than Lin.
B
Lin can type 4 more words per minute than Hoi.
C
Lin can type 8 more words per minute than Hoi.
D
Hoi can type 8 more words per minute than Lin.

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