precalculus problem

Question

Statistical models predict that the price (in dollars) of a 500 GB hard drive will change according to the function p(t) = 600 − 2t², where t is the month. Which expression gives the number of months t (passed since January 1) in terms of the price p?

Answer 1

I am thinking you want to solve for t.

600-t^2=0

600=t^2

sqrt.600=t

sqrt.6x100=t

t=10sqrt.6

t=10+2approx.

12 months