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Goten77
Group Title
y=xe^(x/8)
y1=x(e^(x/8))(1/8) + e^(x/8)(1)
critical points
ima type this below along w/ the question
 one year ago
 one year ago
Goten77 Group Title
y=xe^(x/8) y1=x(e^(x/8))(1/8) + e^(x/8)(1) critical points ima type this below along w/ the question
 one year ago
 one year ago

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Goten77 Group TitleBest ResponseYou've already chosen the best response.0
\[y=xe ^{x/8}\] then derivative is this correct? \[y ^{1}=xe ^{x/8}(1/8) + e ^{x/8}1\]
 one year ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.1
simplifying your 1st derivative you will have \[\frac{dy}{dx} = e^{\frac{x}{8}}(\frac{1}{8} x + 1)\] so you need to solve \[\frac{1}{8} x + 1 = 0\]
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
ok thats what i got and then i get like 1/8x = 1 then x=1/(1/8) = +8
 one year ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.1
thats correct.... that is the only value of x that makes the 1st derivative = 0...
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
oh nvm i c y e^o=1 eh i aint thinking
 one year ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.1
if you have x = 0 then \[dy/dx = e^{\frac{0}{8}}(\frac{1}{8}\times 0 + 1) = 1\] because \[e^{\frac{0}{8}} = 1\] any number to a power of zero is 1 so only 1 critical point...
 one year ago

Goten77 Group TitleBest ResponseYou've already chosen the best response.0
man i made so many simple mistakes on this last quiz... today i just aint thinking... oh well atleast i got this concept right XD
 one year ago
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