Question

the number of people that can be seated in a lecture hall varies directly with the number of rows of seats. if 72 people can be seated in 4 rows, write a direct variation equation to describe the number of people y that can be seated in x rows. then graph

Answer 1

people (y) = k rows (x)

y = kx
72 = k(4)
k = 18

then y = 18x