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Popular >

inverse of f(x)= 2/5 x-1

Solution

inverse

f (x) = \frac{2}{5} x - 1

Solution

\frac{5 x + 5}{2}

Solution steps

y = \frac{2}{5} x - 1

Replace

x

with

y

x = \frac{2}{5} y - 1

Solve for

y, x = \frac{2}{5} y - 1

\frac{5 x + 5}{2}

Popular Examples

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f (x) = x^{4} - 8 x^{3}

periodicity of f(x)=sin(1/(4x-pi))+2 periodicity

f (x) = sin (\frac{1}{4 x - π}) + 2

perpendicular 15x-5y=20,(9,-1)perpendicular

15 x - 5 y = 20, (9, - 1)

range of 5^{x-2}+7 range

5^{x - 2} + 7

domain of f(x)=-sqrt(-2x-17)domain

f (x) = - - 2 x - 17

Frequently Asked Questions (FAQ)

What is the inverse of f(x)= 2/5 x-1 ?
The inverse of f(x)= 2/5 x-1 is (5x+5)/2