# Transformation: finding new coordinates

• July 27th 2010, 04:20 PM
lifeunderwater
Transformation: finding new coordinates
Consider the transformation f(x) ----> f(2x-1). Suppose a point on f(x) is f(3)=2.

What is the new x-coordinate after the transformation to f(2x-1) ?

• July 27th 2010, 06:06 PM
pickslides
The new x-coordinate after tranformation is $2\times 3-1 = 5$ , the y-coordinate can only be found once you know the actual function for $f(x)$
• July 27th 2010, 06:39 PM
lifeunderwater
Thank you very much, that really helps :)