Question

Determine the function necessary that would satisfy the table to the right. Function f() = x2 Function X (Input) Y (Output) X (Input) Y (Output) 2 4 4 2. 3 9 9 3 4 16 16 4

Answer 1

The backward operation of an exponential function is a rational function.

x^2 = √

f(x) = √x

For example

f(4) = √4 = 2

input =4 , output=2