Find the arc length of the curve below on the given interval by integrating with respect to x. y = 4x + 2; [0, 3] (use calculus.) which of the following is a simplified form of the integral? integral_0^3 squareroot 1 + 16 x^2 dx integral_0^3 squareroot 17 dx integral_0^3 squareroot 5 dx integral_0^3 squareroot 1 + 4 x^2 dx the length of the curve is (type an exact answer, using radicals as needed.)