Slope-Intercept Form: Real-World Applications & Interpretations
Authored by Anthony Clark
English, Mathematics
8th Grade
CCSS covered
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car rental company charges a flat fee of $20 plus $0.15 per mile driven. Write the equation in slope-intercept form and interpret the slope in this context.
C = 20m + 0.15; The slope (20) indicates the cost per mile is $20.
C = 0.10m + 20; The slope (0.10) indicates that for each additional mile driven, the cost increases by $0.10.
C = 0.15m + 20; The slope (0.15) indicates that for each additional mile driven, the cost increases by $0.15.
C = 0.15m + 10; The slope (0.15) indicates that for each additional mile driven, the cost decreases by $0.15.
Tags
CCSS.HSF.LE.B.5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A taxi service charges a base fare of $2.50 and $0.50 for each mile driven. Write the equation in slope-intercept form and describe the meaning of the slope.
y = 0.50x + 2.50
y = 2.50x + 0.50
y = 0.50x + 5.00
y = 0.25x + 2.50
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A phone plan costs $25 per month plus $0.10 for each text message sent. Convert this to slope-intercept form and interpret the slope in real-world terms.
y = 0.10x + 30; the slope is 0.10, indicating the cost increases by $0.10 for each call made.
y = 0.25x + 25; the slope is 0.25, indicating the cost increases by $0.25 for each text message.
y = 0.10x + 25; the slope is 0.10, indicating the cost increases by $0.10 for each text message.
y = 0.05x + 25; the slope is 0.05, indicating the cost increases by $0.05 for each text message.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A subscription service charges $15 per month plus $1 for each additional movie rented. Convert this to slope-intercept form and interpret the slope in context.
The slope is 15, indicating a flat fee for renting movies.
The slope is 0, meaning the cost does not change with additional rentals.
The slope is 2, suggesting the cost increases by $2 for each additional movie.
The slope is 1, which means for each additional movie rented, the total cost increases by $1.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A school fundraiser sells cookies for $5 each and has a fixed cost of $10. Write the equation in slope-intercept form and describe what the slope indicates about the sales.
y = 5x - 10
y = 5x - 5
y = 5x + 10
y = 10x + 5
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A concert ticket costs $50 plus a $5 service fee. Convert this to slope-intercept form and explain the meaning of the slope in this scenario.
C = 5x + 45, where the slope is 0.
C = 10x + 50, where the slope is 10.
C = 5x + 50, where the slope is 5.
C = 50x + 5, where the slope is 50.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A landscaping company charges a flat fee of $100 plus $25 per hour of work. Write the equation in slope-intercept form and interpret the slope in context.
y = 25x; slope = 25 (total cost)
y = 50x + 100; slope = 50 (cost per hour)
y = 100x + 25; slope = 100 (cost per hour)
y = 25x + 100; slope = 25 (cost per hour)
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