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samalami
Group Title
Pre Calc:
If y varies inversely as the cube root of x, and y = 12 when x = 8, find y when x = 1.
y = ?
xoxo
 2 years ago
 2 years ago
samalami Group Title
Pre Calc: If y varies inversely as the cube root of x, and y = 12 when x = 8, find y when x = 1. y = ? xoxo
 2 years ago
 2 years ago

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Jonask Group TitleBest ResponseYou've already chosen the best response.0
\[y=\frac{k}{x^3}\] put(8,12) then find k
 2 years ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
after since you have k put x=1 to get y
 2 years ago

samalami Group TitleBest ResponseYou've already chosen the best response.1
@Jonask so y=12?
 2 years ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
did you get k first
 2 years ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
cube ROOT of x, might wanna fix that real quick @Jonask ! :D
 2 years ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
yes\[y=\frac{ k }{\sqrt[3]{x} }\] thanks @zepdrix
 2 years ago

samalami Group TitleBest ResponseYou've already chosen the best response.1
Ifound 12=k/8^3 (y=k/x^3 with substitutions) ~12=1644/8^3
 2 years ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
@samalami the formular had mistake
 2 years ago

samalami Group TitleBest ResponseYou've already chosen the best response.1
then k is 24
 2 years ago

samalami Group TitleBest ResponseYou've already chosen the best response.1
@Jonask ??
 2 years ago

samalami Group TitleBest ResponseYou've already chosen the best response.1
thanks for the clarification @zepdrix :)
 2 years ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
k=24? yah that sounds right :D
 2 years ago

Jonask Group TitleBest ResponseYou've already chosen the best response.0
so now find y when x=1\[y=\frac{24}{\sqrt[3]{1}}\]
 2 years ago

samalami Group TitleBest ResponseYou've already chosen the best response.1
y would equal 24 @Jonask
 2 years ago

samalami Group TitleBest ResponseYou've already chosen the best response.1
@zepdrix does this mean y=24 is the answer to the entire question?
 2 years ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
Hmm yah that sounds right :D Yayyy sammy! \c:/
 2 years ago

samalami Group TitleBest ResponseYou've already chosen the best response.1
@zepdrix much thanks! xoxo
 2 years ago
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