### Home > APCALC > Chapter 9 > Lesson 9.4.1 > Problem9-108

9-108.

Multiple Choice: If $f(x) = 3x^{1/3} − 4x$ and $x_1 = 1$, then using Newton’s Method of approximating roots will result in this approximate value for $x_2$:

1. $0.3333$

1. $0.5$

1. $0.6495$

1. $0.6496$

1. $0.6667$

$x_2=x_1-\frac{f(x_1)}{f^\prime(x_1)}$