Assume the value of a particular house in Duchess County has increased in value according to a quadratic function V(t), where the units of V are in dollars and t represents the number of years the property has been owned. Suppose the house was purchased on January 1, 1970 and valued at $50,000. In 1980, the value of the house on January 1 was $80,000. Finally, on January 1, 1990 the value was $200,000. Find the value function V(t), determine the value on January 1, 1996 and find when the house will valued at $1,000,000.