Marisol randomly surveyed 75 classmates to determine what grade they received in their
mathematics class. Her findings are displayed.

If there are 675 students on campus, how many
are most likely going to receive a B in math?
A 540 students
B 135 students
C 90 students
D 60 students

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

what chart am i supposed to follow?