Consider the relation on the set

MATHEMATICS · Subjective · AP · AP Precalculus · Exponential and Logarithmic Functions · Exponential and Logarithmic Functions

Problem

Consider the relation

R = \{(1,2),\,(2,3),\,(3,4),\,(1,5)\}

on the set

A = \{1,2,3\}

. Determine whether

R

is a function from

A

to the set

B = \{2,3,4,5\}

and give a brief reason for your answer.