Which of the sets of ordered pairs represents a function?

A = {(1, −5), (8, −5), (8, 7), (2, 9)}
B = {(7, −4), (7, −2), (6, −3), (−9, 5)}

Only A
Only B
Both A and B
Neither A nor B

A set of ordered pairs represents a function if there exist unique outputs for all inputs. It means for each values of x there exist, a unique value of y.

In set A the value of y-coordinates are -5 and 7 at [tex]x=8[/tex].

At x=8, there exist more than one value of y, so the set A is not a function.

In set B the value of y-coordinates are -4 and -2 at [tex]x=7[/tex].

At x=7, there exist more than one value of y, so the set B is not a function.

Therefore neither A nor B represents a function and option 4 is correct.

CassidyLovesCats CassidyLovesCats · Answer 2 · 2021-06-25T21:09:32+02:00

CassidyLovesCats CassidyLovesCats

25-06-2021

Answer:

The answer is D, "Neither A or B."

Step-by-step explanation:

In most cases (including this one), there can only be one input or x-value for every unique output, or y-value. In other words, the x-values cannot repeat themselves. Both (8, -5) and (8, 7) are invalid in ordered pairs A, and (7, -4), and (7, -2) make ordered pairs B unable to represent a function. I also took this test and it was correct.

Answer Link

Which of the sets of ordered pairs represents a function? A = {(1, −5), (8, −5), (8, 7), (2, 9)} B = {(7, −4), (7, −2), (6, −3), (−9, 5)} Only A Only B Both A and B Neither A nor B

Respuesta :

Otras preguntas

Which of the sets of ordered pairs represents a function?

A = {(1, −5), (8, −5), (8, 7), (2, 9)}
B = {(7, −4), (7, −2), (6, −3), (−9, 5)}

Only A
Only B
Both A and B
Neither A nor B