SOLUTION: Find the variation constant and an equation of variation if y varies directly as x and the following conditions apply.
y=90 when x=1/9
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Question 1190728: Find the variation constant and an equation of variation if y varies directly as x and the following conditions apply.
y=90 when x=1/9
Found 2 solutions by math_tutor2020, josgarithmetic:
Answer by math_tutor2020(3816) (Show Source): You can put this solution on YOUR website!
y varies directly as x means
y = kx
for some fixed constant k
y = 90 when x = 1/9
Use that to find k
y = kx
90 = k(1/9)
90*9 = k
810 = k
k = 810
The variation constant is 810
The equation is y = 810x
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
-------------------------
y varies directly as x
-------------------------
k, variation constant
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the following conditions apply.
y=90 when x=1/9
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