tnagent lines of parametric equations

[ijd5000]

I can't figure out where i went wrong. I found the derivative of the curve to be (20-56t)/(12t^2) then set it equal to 1 to find my t values. then just plugged them back into the original equations to find my points.

 

[ijd5000]

anyone?

 

[stapel]

I was going to reply, but then I got the same t-values as you, so I had no help to offer. I don't know why the solutions aren't being accepted. Sorry.