Qualification > Queries

ANY DOUBTS HERE!!!

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S.M.A.T:

--- Quote from: ~Alpha on August 26, 2010, 04:40:45 pm ---Do you know the power (n)?

I know you're thinking about the arc shaped curve. That arc can make a more acute bend. Can it?

--- End quote ---

Oops :P i read the question wrong.It says the curve passes between the points (2,200) and (2,2000) not passes through (2,200) and (2,2000).

Saladin:

--- Quote from: asiftasfiq93 on August 26, 2010, 11:19:26 pm ---Oops :P i read the question wrong.It says the curve passes between the points (2,200) and (2,2000) not passes through (2,200) and (2,2000).

--- End quote ---

That happens to me a lot, especially when I am sleepy! :D

Glad to see you so active Asif! :D

S.M.A.T:

--- Quote from: mdymmm on August 22, 2010, 10:19:49 pm ---hey every1 .. can any1 help me with this question ..

The diagram shows the graph of y=x^n where n is an integer.
Given that the curve passes between the points (2,200) and (2,2000), determine the value of n.

I just drew the curve roughly .. its not really accurate.
Thanks in advance :)

--- End quote ---

when x=2
y=2^n

The curve passes through a point with x-coordinate 2 and y-coordinate   200<y<2000

Therefore,
200<(2^n)<2000
(log(200)/log(2))<n<(log(2000)/log(2))
7.64<n<10.97
Since n is a integer,so n=8 or 9 or 10

Alpha:

--- Quote from: asiftasfiq93 on August 26, 2010, 11:19:26 pm ---Oops :P i read the question wrong.It says the curve passes between the points (2,200) and (2,2000) not passes through (2,200) and (2,2000).






--- End quote ---

Oh okay.  :)

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