I hope this is in the right forum, I'm new to this.

#1.) Based on data from 1990 to 2006, the average annual salary of a major league baseball player can be modeled by

A(t) = 0.1474t + 0.4970 million dollars where t is the number of years since 1990.

(a) According to the model, what was the average salary in 1990?

_________ million dollars

(b) Create a new function I(t) that gives the increase in the average salary in millions of dollars over the 1990 salary level.

I(t) = ________ million dollars

(c) If the meaning of t was changed from years since 1990 to years since 1920, how would the function

A(t) = 0.1474t + 0.4970 need to change for the results to still make sense? (Write you answer in terms of a new function S(y) that gives the average salary in millions of dollars where y is the number of years since 1920.)

S(y) = _________ million dollars

#2.) Based on data from 1980 to 2005, the value of the dollar based on producer prices can be modeled by

V(t) = −0.00004785t3 + 0.02314t2 − 0.04774t + 1.137 where t is the number of years since 1980.

Write the formula for P(t) given P(t) = 10V(t).

P(t) =