SOLUTION: In 1920 the record for a certain race was 45.1 sec. In, 1980, it was 4303 sec. Let R(t)= the record in the race and let t= the number of years since 1920. Question Find a linear

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: In 1920 the record for a certain race was 45.1 sec. In, 1980, it was 4303 sec. Let R(t)= the record in the race and let t= the number of years since 1920. Question Find a linear      Log On


   

Question 440160: In 1920 the record for a certain race was 45.1 sec. In, 1980, it was 4303 sec.
Let R(t)= the record in the race and let t= the number of years since 1920.
Question
Find a linear function that fits this data
R(t)=?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi



In 1920 the record for a certain race was 45.1 sec

In, 1980, it was 4303 sec.

 (1980,4303)

 (1920, 45.1)   m = 4257.9 / 60 = 70.965

 R(t) = 70.965t + 45.1 where t= the number of years since 1920.