contestada

Select the correct answer.
Which relation is a function?
A.
{(2, 3), (1, 5), (2, 7)}
B.
{(-1, 5), (-2, 6), (-3, 7)}
C.
{(11, 9), (11, 5), (9, 3)}
D.
{(3, 8), (0, 8), (3, -2)}

Respuesta :

kudzordzifrancis
Answer:

B.  {(-1, 5), (-2, 6), (-3, 7)}

Step-by-step explanation:

The relation that is a function is the one in which the first coordinate of the ordered pairs do not repeat for two different points.

The correct choice is B.  {(-1, 5), (-2, 6), (-3, 7)}

None of the x-coordinates repeated.

The graph of this relation will pass the vertical line test.
zainebamir540

Answer:

Choice  B is correct.

Step-by-step explanation:

We have given four relations.

We have to find the relation which is function.

A function is a relation  that assigns each value of input exactly one output.

In the given relations, A relation in  Choice B is  a function because each input has exactly one output.

{(-1, 5), (-2, 6), (-3, 7)}

In other choices at least one   value of input  has two outputs.

 For example, in choice C the input 11 has two outputs that is 9 and 5.

So B is correct.