Question

How do you figure this out? Help?

Answer 1

Use the arc length formula.

Explanation:

The length of the arc `y=f(x)` from `x=a` to `x=b` is

`int_a^b sqrt(1+(f'(x))^2) dx`

So, find `f'(x)` and decide which of those answers is `int_a^b sqrt(1+(f'(x))^2) dx`