# Constant of Proportionality

## Quiz by Brenda Villarreal

Mathematics
Texas Essential Knowledge and Skills (TEKS)

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28 questions
• Q1
A movie ticket costs \$20.50 for 2 people. What is the constant of proportionality?
10.25
30s
• Q2
The store sells books for \$20.00 per book. How much would two books cost?
40.00
30s
• Q3
Kristen drives 165 miles for 3 hours. What equation can you use to represent this relationship?
y=55x
30s
• Q4
What is the equation for a proportional relationship?
y=kx
30s
• Q5
Which equation of a line represents a
y=7x
30s
• Q6
See image
proportional relationship between x and y?
30s
• Q7
See image
A. y = 7x - 5
30s
• Q8
See image
B. y = 7x
30s
• Q9
See image
C. y = 7
30s
• Q10
See image
D. y = 7x + 5
30s
• Q11
Is the following table proportional?
Yes, it's proportional. The constant is 3.
30s
• Q12
Is the following table proportional?
No. They do not use the same constant throughout.
30s
• Q13
Which equation of a line represents a
y=0.25x
30s
• Q14
See image
proportional relationship between x and y?
30s
• Q15
See image
A. y = 0.25x - 5
30s

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