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Example solution with answer in direct variation

Example solution with answer in direct variation

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Guest [Entry]

"when y varies directly as x, where y=12 and x=4; find y when x=8.

formula: y=kx

we need to find the constant of variation first which is represented as k.

12=k(4)

12=4k

12/4=4k/4

k=3 constant of variation

y=kx

y=(3)(8)

y=24"