TEKS 7.4A - Constant of Proportionality

Solve the proportion.

• k=5

• k=45

• k=60

• k=90

Find the unit rate.

18 orders in 3 days = ________ orders per day

• 3

• 9

• 6

• 8

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

• $1.25 per pound

• $1 per pound

• $2 per pound

• $1.50 per pound

Which equation represents proportional relationships?

• k = yx

• x = ky

• y = kx

• x = yz

Which equation have we been using to find the constant of proportionality (unit rate)?

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• 0.125 pounds per dollar

What is the constant of proportionality for this table?

• $1/9 per hour

• $9 per hour

• $8 per hour

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

Write an equation for this situation.

• y = 9.75x

• y = 19x

• y = 19.25x

• y = 9.5x

Which table represents a situation with a rate of change of 5?

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