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July 5th 2006, 08:45 AM
kwtolley

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Graph- see attach

The figure shows the graph of f(x)= 6x-10 divided by 2x-a. Find the value of a. My answer is 3. Is that right? Thanks for checking.

[.jpg with contents of .doc attached CaptainBlack]
July 5th 2006, 09:18 AM
CaptainBlack

Quote:

Originally Posted by kwtolley

The figure shows the graph of f(x)= 6x-10 divided by 2x-a. Find the value of a. My answer is 3. Is that right? Thanks for checking.

[.jpg with contents of .doc attached CaptainBlack]

$f(x)$ has a vertical asymtote at the zero of $2x-a$ ,
so the $x$ corresponding to the vertical asymtote is:

$x=a/2$ .

From the diagram we see that the vertical asymtote is at $x=2$ , so:

$2=a/2$ ,

or:

$a=4$

RonL
July 5th 2006, 09:26 AM
kwtolley

answer

thanks for checking I see what I did wrong.

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