Function Notation Formula
Functions or Functional Notations are referred by the letter ‘f’ and written as f(x), sometimes in the form of g(x), h(a) etc.
Solved Examples
Question 1: Represent y =
Solution:
Given function is,
y =
By using function notation,
f(x) =
Value of y at x = 3 means f(3).
So, f(3) =
y =
By using function notation,
f(x) =
Value of y at x = 3 means f(3).
So, f(3) =
Question 2: Represent the given function y =
Solution:
Given function is,
y =
By using function notation,
f(x) =
The value of y at x = 2 means f(2).
Therefore, f(2) =
y =
By using function notation,
f(x) =
The value of y at x = 2 means f(2).
Therefore, f(2) =
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