Concept explainers
Determine whether each equation represents a direct variation. If it does, find the constant of variation.
To determine if the given equation represents a direct variation.
Answer to Problem 4P
The given equation show direct variation of the given variables.
The constant of variation is
Explanation of Solution
Given information:
Direct variation means when the given variables always have the same ratio. That is
Hence when equation is in a direct variation it can be written in form
Now let us check the given equation,
Hence the given equation shows direct variation of the given variables.
The constant of variation is
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