Barbara Vernon

which sets of ordered pairs are functions?For each set that is not a function,explain why.?

For each function, name the set os inputs(domain) and the set of outputs(range):
A.) (1,11),(1,111),(1,1111)
B). (-2,2),(-3,2),(-4,2)
C). (Jordan,Barbara),(Jordan,Michael),(Jordan,Vernon),(
D). (Haing Ngor,Academy Award),(Aung San Suu Kyi,Nobel Peace Prize), (Ieoh Ming Pei, Gold Medal of the American Institute of Archetics.)
Help i want to compare my answers to yours.

They are functions if the first thing in each pair is different from the first thing in the other ordered pairs.

A) all the first things are 1 so it is not a function
B) all the first things are different so it is a function

etc.

Duck Sauce | Barbra Streisand (Song & Duck Register, Radio 1 Vernon Kay Version)