### Home > MC1 > Chapter 4 > Lesson 4.3.4 > Problem 4-122

4-122.

. Use a variable expression to represent each sequence of lengths shown below. Homework Help ✎

Think of this as being a tightrope for Cecil to cross. How would you describe his path using this picture?

2*x* + 1 or *x* + 1 + *x*

This problem is very similar to part (a).

If the lengths labeled ''*m*'' were instead labeled as ''1'', how would you write the expression?

3*m* + 5 or *m* + *m* + *m* + 5

Use parts (a) and (b) as guides if you are having trouble.

Remember that the variable represents a number, so you

can use it in an expression just as you would a number.