Question

what is direct variation?
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Answer 1

Answer:

Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if: y=kx. for some constant k , called the constant of variation or constant of proportionality .

Answer 2

Step-by-step explanation:

Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:

Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:y=kx

Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:y=kxfor some constant k , called the constant of variation or constant of proportionality . (Some textbooks describe direct variation by saying " y varies directly as x ", " y varies proportionally as x ", or " y is directly proportional to x .")

Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:y=kxfor some constant k , called the constant of variation or constant of proportionality . (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.

Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:y=kxfor some constant k , called the constant of variation or constant of proportionality . (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.The graph of the direct variation equation is a straight line through the origin.