### Home > CC1 > Chapter 4 > Lesson 4.2.4 > Problem 4-83

In parts (a) through (c) below, refer to the previous problem. You will find the length of the line segments in problem 4-82 by substituting given values for the variables. For example, if *x *is 3 units in part (a) of problem 4-82, the line segment would be 3 + 1 + 3 = 7 units long. Homework Help ✎

Find the length of the line segment in part (a) of problem 4-82 using

*x*= 4. Find the length of the line segment in part (b) of problem 4-82 using

*m*= 4.After substituting 4 for

*m*, the expression for the length of the line segment is 4 + 4 + 4 + 5.Find the length of the line segment in part (c) of problem 4-82 using

*y*= 5.5.

Your new expression will look like 5.5 + 2 + 5.5 + 2. Find the value of this expression to determine the

length of the line segment.