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Popular >

inverse of f(x)=x^2-81

Solution

inverse

f (x) = x^{2} - 81

Solution

x + 81, - x + 81

Solution steps

y = x^{2} - 81

Replace

x

with

y

x = y^{2} - 81

Solve for

y, x = y^{2} - 81

x + 81, - x + 81

Popular Examples

domain of cos(5x)domain

cos (5 x)

range of-2x^2+8x+24 range

- 2 x^{2} + 8 x + 24

range of 2/(2-x)range

\frac{2}{2 - x}

inflection f(x)=5x^4-30x^2 inflection points

f (x) = 5 x^{4} - 30 x^{2}

inflection (x^2-4)/(x^2-1)inflection points

\frac{x ^{2} - 4}{x ^{2} - 1}

Frequently Asked Questions (FAQ)

What is the inverse of f(x)=x^2-81 ?
The inverse of f(x)=x^2-81 is sqrt(x+81),-sqrt(x+81)