Answer to Question #1430 in Calculus for Lauren
E) find local extreme values<br>
F)Find inflection points<br>
The first derivation of the function is
y' = 3e-x/2 - e-x/2 *(3x + 2) = e-x/2*(3 -3x - 2) = e-x/2 *(1 - 3x)
y' = 0: x = 1/3
The second derivation of the function is:
y'' = -3e-x/2 - e-x(1 - 3x)/2 = e-x/2 *(-3 - 1 + 3x) = e-x/2 *(- 4 + 3x)
y'' = 0: x = 3/4
The fustion increases on the (-inf, 1/3) and decreases on (1/3, inf)
The local extreme is x= 1/3;
The fuction concaves up on (-inf, 3/4), concaves down on (3/4, inf)
The inflection point is 3/4.
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