Aoccurs whenever a situation produces pairs of numbers in which their ratio is constant The statement "y varies directly as x" may be translated mathematically as where is the constant of vanation

As " x" increases "y" also similarity ,a in "x" causes a in "y"

Asoccurs whenever a situation produces pairs of numbers in which their products is constant

The statement "y varies inversely as x" may be translated mathematically as ,where is the constant of variation

An increase in" x" causes a in "y" and a in
"x"

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