Thread: Length of curve problem

To find the length of the curve defined by

from the point (-2,10) to the point (1,13), you'd have to compute

W

here a= , b= and f(x)=

So I know the arc length formula and I did that to get

f(x)= sqrt(1+(4/25)x^10+(44/10)x^7+(121/4)x^4) and a=-2, b=1

but that answer is wrong. I am really stuck.. I even searched the forum and looked in my calculus book but still do not know how to do this.. help?

Thanks! It was way easier than I thought, I get it now.