Read the description of f below, and then use the drop-down menus to complete an explanation of why f is or is not a function,
f relates each student in Mr. Well's history class to their score on a final exam.

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

[tex]5 \times1 \frac{12}{13} [/tex] me

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2