flyingfreedom

09-30-2008, 04:01 PM

Determine the inverse of the function f (x) =(4x + 1)/3x

I can't figure out how to do this because I always end up with 2 y's

I can't figure out how to do this because I always end up with 2 y's

View Full Version : inverse function: find inverse of f(x) = (4x + 1) / (3x)

flyingfreedom

09-30-2008, 04:01 PM

Determine the inverse of the function f (x) =(4x + 1)/3x

I can't figure out how to do this because I always end up with 2 y's

I can't figure out how to do this because I always end up with 2 y's

Blitze105

09-30-2008, 04:55 PM

Could you elaborate on this for me? Are you stuck at a spot or is your answer simply wrong? If the answer is wrong please show the work and i can assist you.

tkhunny

10-01-2008, 09:46 AM

Determine the inverse of the function f (x) =(4x + 1)/3x

I can't figure out how to do this because I always end up with 2 y'sYou must remember your algebra. Therre is no reason to get 2 'y's unless you are making an error. In any case, we cannot tell where you wander off unless you show your work.

The distributive property of multiplication over addition is like this: a*b + a*c = a*(b+c) -- See how 2 'a's turn into one 'a'?

I can't figure out how to do this because I always end up with 2 y'sYou must remember your algebra. Therre is no reason to get 2 'y's unless you are making an error. In any case, we cannot tell where you wander off unless you show your work.

The distributive property of multiplication over addition is like this: a*b + a*c = a*(b+c) -- See how 2 'a's turn into one 'a'?

Loren

10-01-2008, 02:08 PM

I get two y's also, but that means I'm not done. Get the two terms containing y on the same side of the equation and the remaining term on the other side. Then factor out the y and divide both sides by the binomial coefficient of y. That should do it.

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