SOLUTION: How do I do the inverse function of... 1. y=3(x)^5 2. y=4-x/8 3. y=3-(x/4) 4. 2(x-1)^3-3

Algebra ->  Functions -> SOLUTION: How do I do the inverse function of... 1. y=3(x)^5 2. y=4-x/8 3. y=3-(x/4) 4. 2(x-1)^3-3      Log On


   

Question 564631: How do I do the inverse function of...
1. y=3(x)^5
2. y=4-x/8
3. y=3-(x/4)
4. 2(x-1)^3-3
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How do I do the inverse function of...
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Each problem involves 2 steps:
1st: Interchange x and y
2nd: Solve for "y":
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1. y=3(x)^5
x = 3y^5
y = (x/3)^(1/5)
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2. y=4-x/8
x = 4-y/8
-y = 8x-4
y = 4-8x
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3. y=3-(x/4)
x = 3-(y/4)
(y/4) = 3-x
y = 12-4x
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4. y = 2(x-1)^3-3
x = 2(y-1)^3-3
(y-1)^3 = (x+3)/2
y = [(x+3)/2]^(1/3)+1
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Cheers,
Stan H.
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