# 8.4.B Graph Proportnal Relationships And Interpret The Unit Rate

## Quiz by Texas Education Agency

Mathematics
Texas Essential Knowledge and Skills (TEKS)

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6 questions
• Q1
Judy can decorate 3 cakes in 5 hours. Which graph has a slope that best represents the number of cakes per hour Judy can decorate?
#texas/daa3a702-3383-41b4-ae88-d585c8b2bd21/D.png
#texas/daa3a702-3383-41b4-ae88-d585c8b2bd21/B.png
#texas/daa3a702-3383-41b4-ae88-d585c8b2bd21/C.png
#texas/daa3a702-3383-41b4-ae88-d585c8b2bd21/A.png
60s
8.4.B: Proportionality
• Q2
An aquarium is being filled with water. The graph shows the height of the water over time as the aquarium is being filled. Which statement best describes the rate of change for this situation?
The height of the water increases 2.5 inches per second.
The height of the water increases 20 inches per second.
The height of the water increases 5 inches per second.
The height of the water increases 1 inch per second.
60s
8.4.B: Proportionality
• Q3
A tree in Dante’s neighborhood grew 18 inches in the first 2 years after it was planted. If the tree continues to grow at this same rate, which graph best represents the growth rate of the tree in inches per year?
#texas/99236d09-5053-4c4b-aed7-37ca56ba8004/A.png
#texas/99236d09-5053-4c4b-aed7-37ca56ba8004/D.png
#texas/99236d09-5053-4c4b-aed7-37ca56ba8004/C.png
#texas/99236d09-5053-4c4b-aed7-37ca56ba8004/B.png
60s
8.4.B: Proportionality
• Q4
On a field trip, there are 3 adults for every 45 students. Which graph models a relationship with the same unit rate?
60s
8.4.B: Proportionality
• Q5
A water hose discharges water at a rate of 45 gallons per minute. Which graph has a slope that best represents this rate?
#texas/52e425ec-a5af-4369-a390-c23d6012824c/B.png
#texas/52e425ec-a5af-4369-a390-c23d6012824c/C.png
#texas/52e425ec-a5af-4369-a390-c23d6012824c/A.png
#texas/52e425ec-a5af-4369-a390-c23d6012824c/D.png
60s
8.4.B: Proportionality
• Q6
Leanor pays a total of \$16.50 for every 6 shirts she has dry-cleaned. Which graph models a relationship with the same unit rate?
#texas/4f69de93-22fa-4ba7-8c5b-4b1dd2a91428/C.png
#texas/4f69de93-22fa-4ba7-8c5b-4b1dd2a91428/B.png
#texas/4f69de93-22fa-4ba7-8c5b-4b1dd2a91428/A.png
#texas/4f69de93-22fa-4ba7-8c5b-4b1dd2a91428/D.png
60s
8.4.B: Proportionality

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