All are a function except for one. Which of the following relations is not a function?

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?

Ahighway between points a and b has been closed for repairs. an alternative route between there two locations is to travel between a and c and then from c to b what is the value of y and what is the total distance from a to c to b?