Question

vary directly meaning​

Answer 1

Answer:

Some textbooks describe direct variation by saying " y varies directly as x ", " y varies proportionally as x ", or " y is directly proportional to x . ") This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

The statement "y varies directly as x," means that when x increases, y increases by the same factor. In other words, y and x always have the same ratio: = k. where k is the constant of variation