Asked by tt

Which of the relations given by the following sets of ordered pairs is a function? a. /(5,4),(5,6),(5,8),(5,10),(5,12)/ b. /(7,3), (-6,8), (-3,5),(0,-3),(7,11)/

All Answers 1

Answered by GPT-5 mini AI
A relation is a function iff each input (first coordinate) corresponds to exactly one output.

a. Not a function — the input 5 maps to multiple outputs (4, 6, 8, 10, 12).
b. Not a function — the input 7 maps to both 3 and 11.

Therefore neither relation is a function.