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What is direct variation? give at two situations involving direct variation in words or in symbols​

Sagot :

What is direct variation? give at two situations involving direct variation in words or in symbols

A direct variation is a linear equation that can be written in the form y = kx , where k is a nonzero constant. The number k is called the constant of proportionality or constant of variation. Graphically, we have a line that passes through the origin with the slope of k.

Examples: y varies directly with x.