Question

For what value(s) of k will the relation not be a function.

S=k+1

Answer 1

Explanation:

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Answer 2

The relation cannot be a function if k=-9 or k=7

Explanation:

For any relation not to be a function, one domain value should return more than one range.

==> 2-|k+1| = -6

Adding -2 on both sides,

-|k+1| = -8

Multiplying by (-1) on both sides,

|k+1| = 8

k+1 = 8 ; -k-1 = 8

k = 7 ; -k=9 => k=-9

k=7 or k=-9