Question

A house was purchased for $67,000 After 7 years the value of the house was $130,000. Express the house's value V(t) in terms of time t in years.

Answer 1

if linear (doubt that really by the way)

V(t) = 67,000 + (130,000-67,000) t/7

= 67,000 + 9 t

Answer 2

what is t that's what I'm trying to find

Answer 3

I have a typo, forgot thousands

V(t) = 67,000 + 9,000 t

It asked you to write V(t) as a function of t where t is the years since you bought the house.
when t = 0 , V = 67,000 + 9,000 * 1
when t = 2 , V = 67,000 + 9,000 * 2
etc

Answer 4

another typo

when t = 0 , v = 67,000 + 9,000 * 0
when t = 1 , V = 67,000 + 9,000 * 1
when t = 2 , V = 67,000 + 9,000 * 2
etc