CPM Homework Banner

Home > CC4 > Chapter 2 > Lesson 2.1.3 > Problem 2-34


Which graphs below have a domain of all real numbers? Which have a range of all real numbers? Which are functions? Homework Help ✎

  1. graph

  • In which graph do all values of x have a corresponding y-value?
    Refer to the Math Notes box in Lesson 1.2.5.

  • Graphs (a) and (b)

  • In which graphs do all values of y have a corresponding x-value?

  • Graphs (a) and (c)

  • A function can only have one y-value for each x-value.