Let f: R → R: f(x) = 10x + 3. Find f-1. – InterviewSolution

InterviewSolution

1.

Let f: R → R: f(x) = 10x + 3. Find f-1.

Answer»

It is given that

f(x) = 10x + 3

Consider y = 10x + 3

It can be written as

y – 3 = 10x

On further calculation

x = (y – 3)/ 10

So we get

f ^-1 (y) = (y – 3)/ 10

Discussion

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