Question

Identify each following representation as a function or nonfunction and explain your reasoning.​

Answer 1

• a) and c) - function,
• b) and d) - nonfunction

Explanation:

• As per definition, a function is such a relationship that each input has exactly one output

Considering this we observe that:

• a) function
• b) not a function as input of -1 has two different outputs o and 1
• c) function
• d) not a function as input of 0 has two different outputs 0 and 0.5