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3-93.

$x_0$, $x_1$, $x_2$, $x_3$, $x_4$, and $x_5$ can be used to represent the values of $x$ when an interval is broken into five equal pieces. If the interval $1\le x\le4$ is divided into five equal pieces, where $x_0=1$ and $x_5=4$, list $x_1$, $x_2$, $x_3$, and $x_4$. Refer to the preceding Math Notes box for an example.

Calculate the length of the interval: $4−1=3$

Divide the length of the interval by the number of pieces: $3\div5=0.6$ (length of each piece)

Start at $1$ and add $0.6$ to each interval.

$x_0=1$
$x_1=1+0.6=1.6$
$x_2=1.6+0.6=2.2$
$x_3=2.2+0.6=2.8$
$x_4=2.8+0.6=3.4$