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Question 9: Indicate whether each table specifies a function y = f(x)

 

Solution

a. Each domain value x has a unique range value y. This is a Function.

Not a function?
Remember for a relation to be a function, each x or domain has a unique y or range value.

b. Each domain value x has a unique range value y. This is a Function.

c. Each domain value x has not a unique value y. Domain values 3 and 4 have repeated range values. This is not a function.

3 Comments

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