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Home > CC2 > Chapter 6 > Lesson 6.2.5 > Problem 6-108

6-108.

Which of the equations below represent proportional relationships? If the relationship is proportional, identify the constant of proportionality. If the relationship is not proportional, explain why.  

  1.  

    A proportional relationship should involve only multiplication. Does this equation fit that description?

    Not proportional, since there is addition.

  1.  

    There is only multiplication involved in this equation.

    Proportional; constant of proportionality is 

  1.  

    This equation is equivalent to .