Which statement below is correct for the following set of ordered pairs?

{(0, 1.2), (3, 2), (−1.2, 3), (4, −2), (1, −1.2), (1.2, 4)}

a the set is a function since each element in the domain has a different element in the range.

b the set is a function since each element in the range has a different element in the domain.

c the set is not a function since each element in the domain has a different element in the range.

d the set is not a function since each element in the range has a different element in the domain.

We observe the set doesn't have two points with the same x value, so this is a function.  Let's look at the answers.

a The set is a function since each element in the domain has a different element in the range.

No, this is more the idea of one-to-one or injectivity.

b The set is a function since each element in the range has a different element in the domain.

This isn't quite right either but we're going to choose it as the best answer.  It's not that each element in the range has a different element in the domain; that would be onto aka surjectivity.  It's that each element in the set, each point, has a different element in the domain, a different y coordinate.  It's ok if two different x coordinates map to the same y coordinate, which they don't here but they could.

b

c The set is not a function since each element in the domain has a different element in the range.

Nope, it is a function.

d The set is not a function since each element in the range has a different element in the domain.

Nope, it is a function.

Demand better questions from your teachers!

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.