Question 841582
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Hi,
E(t)=___?t+__?     | {{{y = mx +b}}}
find slope:
(1997,73.4)
(1992, 71.1)   m = {{{(73.4-71.1)/(1997-1992)}}} = 2.3/5  = .46
Use 2nd point to find 'b' where t = 0
E(t)= .46t+ 71.1
E(11) = .46(11) + 71.1