Asked by Jennifer
Find the Inverse function of f:
f(x)=8+[square root of(8+x)]
f^(-1)(x)=_______, x>8
f(x)=8+[square root of(8+x)]
f^(-1)(x)=_______, x>8
Answers
Answered by
Steve
f = 8+√(8+x)
to find f^-1, swap variables and solve for f:
x = 8+√(8+f)
x-8 = √(8+f)
x^2-16x+64 = 8+f
f = x^2-16x+56
to find f^-1, swap variables and solve for f:
x = 8+√(8+f)
x-8 = √(8+f)
x^2-16x+64 = 8+f
f = x^2-16x+56
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