1-determine whether the function / is one-to- one: f(t) is the number of people in line at a movie theater at time t.

is a function but not one-to-one.

Step-by-step explanation:

Please refer to my Answer from this Question to know how to Determine whether a Relation is a Function or not: 9

This is a function because time can only move forward and there can't be different numbers of people, , at the same time, . The only thing that is possible is we can have the same number of people, , at the different times, . So, this isn't one-to-one but many-to-one.

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0