Thread: Length of a line

Hi there, i was puzzling over this today and wonder if someone could help.

if i had a line of some equation, say



which is just some cubic, how would i calculate the length of a line between say, 0 and 5? obviously i would have to use integration by substitution, but where do i go from there?

thanks

Sorry I don't quite understand what you mean by where do i go from there, but this is the formula for calculating the length s of the path from x=a to x=b of a continuous and continuously differentiable function f(x):

.

thanks, that was helpful. i hadn't been able to find a concise approach online.