Answered

Which of the following is a function?
a. {(-4,1),(1,8),(-4,-2)}
b. {(-4,1),(1,-8),(-2,-2)}
c. {(-4,1),(1,-8),(1,-2)}
d. none of these

Answer :

Answer:

b.

Step-by-step explanation:

The expression b is a function because the x values are all different.

In fact it is a one-to-one function as there is a different value of y for each value of x.

arshad17
The expression b. {(-4,1),(1,8),(-4,-2)} is a function

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