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what is an example of a direct variation?

what is an example of an inverse variation?

where and how are these used in science and engineering?

Direct variation - y = kx Inverse variation - y = k/x

Step-by-step explanation: Direct variation is used when a function is directly proportionate by a constant variable. Inverse variation is used when a function is inversely proportionate by a constant variable. Direct variation can be used to calculate salaries, time, or distance relating to a constant variable that is graphed as a straight line. Inverse variation can be used to calculate populations relating to a constant variable that is graphed as a curve.

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.