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4-82.

Use an algebraic expression to represent each sequence of lengths shown below. Homework Help ✎

  1. pic

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

    2x + 1 or x + 1 + x

  2. pic

    This problem is very similar to part (a).
    If the lengths labeled ''m'' were instead labeled as ''x'', how would you write the expression?

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

  3. pic

    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.