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anonymous
 5 years ago
Can someone solve this please?
the points (2,6) and (3,18) lie on the curve y=ax^n
use logarithms to find the values of a and n, giving your answers correct to 2d.p.
thanks :)
anonymous
 5 years ago
Can someone solve this please? the points (2,6) and (3,18) lie on the curve y=ax^n use logarithms to find the values of a and n, giving your answers correct to 2d.p. thanks :)

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.06 = a(2^n) > a = 6/2^n 18 = a(3^n)> 18 = 6(3^n)/(2^n)>3 = 3^n/2^n

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i dont know what you did :(

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how did you get 3=(3/2)^n?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0because 18 = 6(3/2)^n, divide both sides by 6

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but i need a number with 2dp :S

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay. so we have 3 = (3/2)^n take log on both sides log 3 = log(3/2)^n > log 3 = n log(3/2) > n = log 3/ log(3/2) use calculator to find the value of n to 2 dp

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.02.71!!! YAYA! thanks ill give u a medal :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0use n to find a by substituting in one of the equations.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh :( i thought that the qs ended ill do that now then :)

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0ok I got n=log(1/3) /log(2/3) maybe I made a mistake

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0oh wait it might be the same thing lol

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0there are so many properties with log

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0the reason they are the same is : log(1/3) /log(2/3)=[log1log3]/[log2log3]=[0log3]/[(1)(log3log2)]=log3/[log3/2]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wow, it looks like a sentence without any words XD

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0its not hard to understand if you think about it, Miss.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0n=ln3\(ln3/2) et a=6/[2^(ln3/2)]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i dont actually understand it it looks like random equations put together :p

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay. I hope for your sake that you are not taking math as a major course then :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no, really wanna drop it next year. its way too hard i cant manage it :(

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, some people are good at certain things, others are good at other things.
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