Posted by **anna** on Monday, July 26, 2010 at 1:04pm.

The winning time int he womens Olympic 200 meter dash w is a function of the year x in which the event was run, starting with 1948 and is given by the equation

w= f(X)= -0.0661X+152.8

A. PREDICT THE WINNING TIME FOR THE 1988 OLYMPICS. ( THE ACTUAL TIME WAS 21.34 SECONDS)

B. FIND F^-1(W)

C. USE F^-1(W) TO PREDICT IN APPROXIMATELY WHAT YEAR THE WINNING TIME WILL BE 20 SECONDS

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