Hey need help on the 3 questions,

thanks heaps

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- Jul 20th 2009, 04:34 AMsmmmcLogarithms
Hey need help on the 3 questions,

thanks heaps - Jul 20th 2009, 04:47 AMyeongil

You have to know that for your basic logarithm function the asymptote is at x = 0. The only way that it would change is if we have a horizontal shift. Do we in ? (In other words what do the 3, 5, and +2 do?) If you can answer that, then you have the answer to the problem.

As for #9,

Quote:

Which one of the following functions has a graph with a veritcal asymptote with equation x = b?

01 - Jul 20th 2009, 05:32 AMsmmmc
its a toss up between a and b hrmm

- Jul 20th 2009, 06:03 AMSoroban
Hello, smmmc!

I have a solution for #8, but there must be a better way.

Quote:

Given , show that: .

We have: .

. . Take logs: .

. . And we have: . .[1]

We have: .

. . Take logs: .

. . And we have: . .[2]

Hence: .

. . Therefore: .