Direct Variation 8.5e

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Front

The value of y varies directly with x. When y=75, x=1/2. What is the value of y when x is 2.25?

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337.5

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Distance Kendrick travels vs. time: 20 minutes for 5 miles.

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0.25 mile per minute

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The cost of a pizza varies directly with the length of the diameter. If a pizza with a 12-inch diameter costs $8.64, how much should a pizza with a 16-inch diameter cost?

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$11.52

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What is k, the constant of variation? Options: 15, 40, 54, 35

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35

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The number of inches a bungee cord stretches varies directly with the number of pounds it holds. One cord stretches 12 inches when a 30-pound object is attached to it. Which table best represents this relationship?

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Front

The number of donuts produced by a machine is directly proportional to the time the machine runs. The machine produces 380 donuts in 20 minutes. How many donuts can the machine produce after running for 45 minutes?

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855 donuts

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k = ?

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Front

When we compare quantities, we compare them as _____ over _____.

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y over x

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Equation for Bella watching TikTok videos 4.5 hours per day

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y=4.5x