Question

5.

Which relation is a function?

A. {(–2, –12), (–2, 0), (–2, 4), (–2, 11)}

B. {(–4, –6), (–3, –2), (1, –2), (1, 0)}

C. {(8, 1), (4, 1), (0,1), (–15, 1)}

D. {(0,1), (0, 2), (1, 2), (1, 3)}

Answer 1

C. {(8, 1), (4, 1), (0,1), (–15, 1)}

Explanation:

Since there is one value of

y

for every value of

x

in

(

8

,

1

)

,

(

4

,

1

)

,

(

0

,

1

)

,

(

−

15

,

1

)

, this relation is a function.

The relation is a function.

Answer 2

c

Explanation:

is the answer as there is no repeated x for example if the x is repeated again its not a function