Question

a. R1 and R2 are functions
b. R2 and R3 are functions
c. R1 and R3 are functions
d. Only R1 is a function​

Answer 1

Answer:

c

Step-by-step explanation:

answer of your question is r1 and r3

Answer 2

Step-by-step explanation:

R1 and R3 are functions

R2 is one to many relation hence is not a function

for a relation to be a function, every element of the domain has to be related to only one element of the codomain