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Solve proportions involving direct variation, inverse variation, or joint variation. Problem: Suppose that y is directly proportional to x and that y=-65 when x=8. a.)

Solve proportions involving direct variation, inverse variation, or joint variation.

Problem: Suppose that y is directly proportional to x and that y=-65 when x=8.

a.) What is the constant proportionality of K?

k= jQuery20009897582474126463_1498615579183???? (Provide an integer or fraction)

b.) Use y=kx to find y when x=6.

y=?????? (Provide integer or fraction)

show calculation

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