Choose whether each situation represents a direct variation or inverse variation.

Question

(1 point)
Direct Variation Inverse Variation
xy=27

Direct Variation – x over y is equal to 27

Inverse Variation – x over y is equal to 27
5y=x

Direct Variation – 5 y is equal to x

Inverse Variation – 5 y is equal to x
It costs $30 per piano lesson
Direct Variation – It costs $30 per piano lesson

Inverse Variation – It costs $30 per piano lesson
yx=−42

Direct Variation – y over x is equal to negative 42

Inverse Variation – y over x is equal to negative 42
The cost per fitness class at a gym that costs $13 a month with unlimited classes included.

Answer 1

Inverse Variation – The cost per fitness class is dependent on the number of classes attended, and as the number of classes increases, the cost per class decreases.