Question 970342: z=8 when x=2 and y=4, z varies jointly with x and y, what does the function look like? Found 2 solutions by stanbon, rothauserc:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! z=8 when x=2 and y=4, z varies jointly with x and y,
what does the function look like?
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z = k*x*y
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Solve for "k":
8 = k*2*4
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k = 1
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Equation:
y = x*y
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Cheers,
Stan H.
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You can put this solution on YOUR website! z = k*x*y where k is the constant of proportionality
8 = k*2*4
k = 1
therefore the equation looks like
z = x * y
(