Question

1. choose the best answer. using the given coordinates and the ruler postulate, calculate the length of the line segment. $overline{df}$ 3 -1 $\frac{2}{3}$ 1

Explanation:

Step1: Identify coordinates

Let the coordinate of point $D$ be $2$ and the coordinate of point $F$ be $3$.

Step2: Apply Ruler Postulate

The length of a line - segment with endpoints having coordinates $x_1$ and $x_2$ is $|x_2 - x_1|$. Here, $x_1 = 2$ and $x_2=3$, so the length of $\overline{DF}=|3 - 2|$.

Step3: Calculate the result

$|3 - 2|=1$.

Answer:

1