The average prices of a gallon of fuel are shown in the table. Let p=f(t) be the average price of fuel at t years since 1980. The model f(t)=0.0075t2−0.2t+2.32 fits the data well.
 Year
 Price (dollars per gallon)
 1980
 2.38
 1985
 1.57
 1990
 1.18
 1995
 0.95
 2001
 1.33
 2005
 1.95
 2006
 2.35
 a. Find the p-intercept of the model. 
 The p-intercept is nothing.
 (Type an ordered pair. Type an integer or decimal rounded to two decimal places as needed.)