# Graph- see attach

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• July 5th 2006, 08:45 AM
kwtolley
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.