Sketch the graph of e, leading economic indictators: the

Sketch the graph of e

Reference no: EM13185925

leading economic indictators: the value of the conference board index of 10 economic undicatators in the U.S could be approximately by the following function of time t in months since the end of december 2002.

E(t)= {0.4t+110 if 6<t<15
{-0.2t + 119 if 15<t<20

a) Estimate E(10), E(15, E(20)
B) sketch the graph of E and use your graph to estimate when the index first reached 115

Reference no: EM13185925

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