Inverse Proportion

y is inversely proportional to x, and y = 2 when x = 5. Find the value of x when y = 4.

Determine whether the two quantities are inversely proportional. If so, find the constant of proportionality.

• Yes; k=50

• Yes; k=0.08

• Yes; k=0.5

• Not inversely proportional

Determine if the following function rule represents a proportional relationship, inverse variation, or neither.

• proportional

• inverse

• neither

• Yes; k = 20

• Yes; k = 0.05

• Yes; k = 2

• Not inversely proportional

The graph represents an inverse proportion. Find the constant of proportionality.

The graph represents an inverse proportion. Find the constant of proportionality.

The graph represents an inverse proportion. Find the constant of proportionality.

Given that y is inversely proportional to x, what is the general equation?

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y is inversely proportional to x, and y = 2 when x = 5. Find the constant of proportionality.

The number of minutes it takes to download a file is inversely proportional to the download speed. It takes Rachel 12 minutes to download a file when the download speed is 256 kilobytes per second. How long will it take her to download the same file if the download speed is 512 kilobytes per second? (Don't forget your units)