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belka [17]
2 years ago
5

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

Mathematics
2 answers:
andreev551 [17]2 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]2 years ago
3 0
The answer is A C D your answer
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this means; (x-2) &( 4) stands for" x "axis.

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