Question

Suppose f(x) is a function that models the data. If f(x) is a function of price, during what interval does the function increase?

a.1981 - 1982
b.1990 - 1991
c.1980 - 1981
d.1991 - 1992

Answer 1

backround info

Answer 2

c 80-81.

You can tell by the price differences. It is the only increase of the answers.

Answer 3

but dont they all increase?

Answer 4

oh wow the dont

Answer 5

just seen that

Answer 6

thanks for the help

Answer 7

Ok. Glad you got it. Its always nice once you understand.

Answer 8

:)