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Slope And Y-intercept From A Story
Test Description: Help students practice the difference between rate and starting amount in a story
Instructions: Answer all questions to get your test result.
1) A battery with 20% of its full capacity is connected to a charger. Every minute that passes, an additional 5% of its capacity is charged. What is the slope (rate) in this problem?
A
-5%
B
20%
C
-20%
D
5%
2) A battery with 20% of its full capacity is connected to a charger. Every minute that passes, an additional 5% of its capacity is charged. What is the y-intercept (starting amount) in this problem?
A
-20%
B
-5%
C
5%
D
20%
3) A battery with 20% of its full capacity is connected to a charger. Every minute that passes, an additional 5% of its capacity is charged. What is the equation for this problem?
A
y = 0.2x + 0.05
B
y = 0.05x + 0.2
C
y = 0.5x + 0.2
D
y = 0.05x - 0.2
4) Zane is a rock climber and was 20 meters below the edge of a volcano, when he heard some rumbling. He began to climb out as quickly as he could. He managed to climb up 4 meters per second to get out safely. What is the slope in this problem?
A
-20
B
-4
C
20
D
4
5) Zane is a rock climber and was 20 meters below the edge of a volcano, when he heard some rumbling. He began to climb out as quickly as he could. He managed to climb up 4 meters per second to get out safely. What is the y-intercept in this problem?
A
20
B
-20
C
4
D
-4
6) Zane is a rock climber and was 20 meters below the edge of a volcano, when he heard some rumbling. He began to climb out as quickly as he could. He managed to climb up 4 meters per second to get out safely. What is the equation for this problem?
A
y = 4x + 20
B
y = -4x - 20
C
y = 20x + 4
D
y = 4x - 20
7) Agent Hunt transferred classified files from the CIA mainframe onto his flash drive. The flash drive already had 60 megabytes on it before the transfer, and an additional 4 megabytes were transferred onto it each second. What is the slope?
A
4
B
-60
C
60
D
-4
8) Agent Hunt transferred classified files from the CIA mainframe onto his flash drive. The flash drive already had 60 megabytes on it before the transfer, and an additional 4 megabytes were transferred onto it each second. What is the y-intercept?
A
-4
B
-60
C
4
D
60
9) Agent Hunt transferred classified files from the CIA mainframe onto his flash drive. The flash drive already had 60 megabytes on it before the transfer, and an additional 4 megabytes were transferred onto it each second. What is the equation?
A
y = 4x + 60
B
y = 60x + 4
C
y = -60x + 4
D
y = -4x + 60
10) In a story problem, what is the slope?
A
starting amount
B
difference
C
negative
D
rate
11) In a story problem, what is the y-intercept
A
starting amount
B
rate
C
constant
D
positive
*select an answer for all questions
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