Question

Which of the diagram given below represents a function?

• A.
• B.
• C.
• D. None of the above

Answer 1

The correct option is C

$\underset{–}{Concept}$
A mapping diagram represents a function if each input value is paired with only one output value.

a. Input $2$ is paired with two output values, hence not a function.

b. Input $c$ is not paired with any value in output, hence not a function.

c. Each input is paired with only one output, hence represent a function.