Question

The relation {(2,11), (-9, 8), (14, 1), (5, 5)} is NOT a function when which ordered pair is added to the set?
a.
(8, -9)
c.
(0, 0)
b.
(6, 11)
d.
(2, 18)

Answer 1

Hint: If by adding an extra pair to the relation you have a duplicate value of x (thats the first number in the pair) then its not a function.

Answer 2

So which one of the choices gives you a duplicate x-value?

Answer 3

b?

Answer 4

No - there is no x value 0 in the original relation.

Answer 5

oh is it c?

Answer 6

No check the x values in the choices against the x-values in the question

Answer 7

oh it a right?

Answer 8

the x values in the q are 2 , -9 , 14 and 5.

Answer 9

you are guessing , i think

Answer 10

no im not i dont understand this. i think its a.

Answer 11

its a or d