# Derivative Problem

1. Jan 9, 2009

### brambleberry

3. The attempt at a solution

I took the derivative first and got dy/dx = 2 - 1/x. I then substituted and got the answer 1. I'm confused if I was supposed to use dy/dt at all during this problem, and I don't know if I took the right steps.

Last edited: Jan 9, 2009
2. Jan 9, 2009

### sutupidmath

3. Jan 10, 2009

### HallsofIvy

Staff Emeritus
Please tell us what the problem is! What did you differentiate to get dy/dx? This makes no sense at all.

4. Jan 10, 2009

### icystrike

i suppose this should be differentiate with respect to x if not there would still be variables of t in your equation of first derivative.