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3 years ago

Select all the correct answers. Which of these relations are functions?

Mathematics

2 answers:

andreev551 [17]3 years ago

6 0

Answer with Step-by-step explanation:

A function is a map from non empty set a to non empty set B such that corresponding to each element of A there exist unique image in B.

A) y=5

Corresponding to each x, there exist a unique element of each element which is 5

Hence, it is a function

B) x= -2

Corresponding to the point -2, there exist more than one image

Hence, it is not a function

C) y=2x-5

Corresponding to each x,the value of y is unique

Hence,it is a function

D) 2y=x-4

Corresponding to each x,the value of y is unique

Hence,it is a function

Hence, Correct options are:

A) y=5

C) y=2x-5

D) 2y=x-4

TEA [102]3 years ago

3 0

The answer is A C D your answer

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Step-by-step explanation:

All domain really means is what numbers can you plug in and you get number back from your function.

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