### Home > CCG > Chapter 3 > Lesson 3.2.5 > Problem3-103

3-103.

On graph paper, graph line $\overleftrightarrow{LD}$ if $L(-2,1)$ and $D(4,-4)$.

1. Find the slope of $\overleftrightarrow{LD}$.

Draw a slope triangle.

2. Find $LD$ (the distance from $L$ to $D$).

Use the Pythagorean Theorem.

$\sqrt{61}\approx7.81\ \text{units}$

3. Describe how you might determine the lengths of the sides of the slope triangle without using graph paper.

Find the difference between the $x$-coordinates of $L$ and $D$.

Use the eTool below to complete the graph of the line.
Click the link at right for the full version of the eTool: CCG 3-103 HW eTool