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An inverse function essentially gives us the opposite output for the same input of a function and cab be graphically represented as a reflection on the y=x axis.To find algebraically the inverse of a function, we can simply swap out our function for a variable y to replace f(x) and then we rearrange to make x a function of y. To complete our final answer, we finally need to replace the y terms with x and replace our subject of the formula with f^-1(x) to signify that this is an inverse function.

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One to one online tution can be a great way to brush up on your Maths knowledge.

Have a Free Meeting with one of our hand picked tutors from the UK’s top universities

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