TEKS.MATH.7.4C

Is this a direct variation?
y=2x

• yes
• no

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TEKS.MATH.7.4C

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

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TEKS.MATH.7.4C

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14

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TEKS.MATH.7.4C

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building? (Draw a picture, set up a proportion)

• 24 feet
• 21 feet
• 27 feet
• 32 feet

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TEKS.MATH.7.4C

TEKS.MATH.7.5A

Does the relationship represent direct variation?

• Yes
• No

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TEKS.MATH.7.4C

What is the constant of proportionality for this table?

• 1/9
• 9
• 8

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TEKS.MATH.7.4C

Which relationship is an example of a proportional function?

• a rental company charges $80 per day and a one-time fee of $24
• a taxi ride costs $2 for the first mile and $4 for each additional mile
• a gym membership cost $30 per month and an additional annual registration fee of $75
• Beverly earns $210 a week for 4 weeks

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TEKS.MATH.7.4C

How do you find k? 

• x/y
• y/x
• y=kx
• x ⋅ y

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TEKS.MATH.7.4C

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14
• 1/14

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TEKS.MATH.7.4C

Is this graph proportional?

• Yes
• No

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TEKS.MATH.7.4C