### Home > PC > Chapter 2 > Lesson 2.3.2 > Problem2-87

2-87.

Let $f\left(x\right) = x^{2}$

1. Find $x_{0}$, $x_{1}$, $x_{2}$, $x_{3}$, and $x_{4}$ if the interval $2 ≤ x ≤ 5$ is divided into four equal pieces.

$\text{Width between each piece}=\frac{\text{length of the interval}}{\text{Number of pieces}}$

2. Find $f\left(x_{2}\right)$ and $f\left(x_{4}\right)$.

Use the information you found for $x_{2}$ and $x_{4}$ above to substitute into the given function.