3 years ago

Select the correct answer. Which equation represents a function?

Mathematics

1 answer:

inn [45]3 years ago

7 0

Answer:

Step-by-step explanation:

'x=' create vertical lines which are not functions whereas

'y=' create horizontal lines which are functions

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A = {a, b, c, d}

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Answer:

Johnny is wrong.

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Step-by-step explanation:

Johnny is wrong.

A better definition would be: $A \cup B$ is the set of all elements that belong to at least one A or B.

So, the elements that belong to both A and B, like c and d in this exercise, also belong to $A \cup B$ .

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$A \cup B=\left\{a,b,c,d,e,f,g,h\right\}$

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