Question

I just don't get Logs oh well can someone explain this to me

Answer 1

what you like to know about logarithms ?

Answer 2

well wait a second it wont let me post the graph

Answer 3

@jhonyy9

Answer 4

incase anyone wants to know I think its A but suggestions if I'm wrong would be greatly appreciated

Answer 5

Are you willing to tackle this from the beginning?

Answer 6

That's the plot of y=ln(x)

courtesy wikipedia

Answer 7

@mjdennis
yes I am

Answer 8

Notice two things - the vertical asymptote is x=0. (x cannot be less than zero, and for x close to zero, y is large and negative.)

Answer 9

And at x=1, y= 0.

Answer 10

Now, two choices. You can now solve this without ever needing to know more about logarithms, or we can talk about logarithms. I think the first choice. Do you want to choose.

Answer 11

I'm going to start my choice while you think about it.

In the graph for your problem, what is the lowest value of x?

Answer 12

For sure, it isn't 0.

But the graph of ln(x) has 0 as the lower limit for x. So we have to use ln(x+a) or ln(x-a) to shift the ln(x) graph to a new place.

Answer 13

I will be away fro a minute or two, while you start those answers.

Answer 14

@mjdennis I got D after I saw which ones shifted and where they shifted too

Answer 15

Good catch, that's the one.

Answer 16

@mjdennis
thank you so much