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