Question

6. its not b

i need this answer QUICK!!

Which relation is a function?



{(5, 0,) (–8, –5)}


{(5, 0), (–8, –5), (–8, 5), (–5, –8)}


{(5, 0), (0, 5), (–5, –5)}


{(5, 0), (0, –8), (5, –5)}

Answer 1

The answer is A. {(5, 0), (-8, -5)}

Explanation:

It's not B. because Since

x

=

−

8

produces

y

=

−

5

and

y

=

5

, the relation

(

5

,

0

)

,

(

−

8

,

−

5

)

,

(

−

8

,

5

)

,

(

−

5

,

−

8

)

is not a function.

The relation is not a function.

It's not C. because Since there is one value of

y

for every value of

x

in

(

5

,

0

)

,

(

0

,

5

)

,

(

−

5

,

−

5

)

It's not D. because Since

x

=

5

produces

y

=

0

and

y

=

−

5

, the relation

(

5

,

0

)

,

(

0

,

−

8

)

,

(

5

,

−

5

)

is not a function.

The relation is not a function.