Will upvote all answers.
what is the range of the function?
{(3, 2), (-6, 2), (7, 3), (8, 4)}
a. {2,3,4}
b. {7,3,8,4}
c. {3,-6,7,8}
d. {3,2,-6,2}

The range is all of ur y values. Your points are set up like this (x,y).
So all ur y values in ur sets of points are : 2,3,4so that is ur range. If there are repeating y values, they only have to be written once.

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.

The answer would be $68.04