Use the given values to write an equation that relates x and y. x=-9, y=3 Find y when x=12
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Originally Posted by SpaceGhost Use the given values to write an equation that relates x and y. x=-9, y=3 Find y when x=12 Direct variation therefore y = kx. Substitute x = -9 and y = 3 to solve for k. Substitute the value of k and then use the formula to find y when x = 12.
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