Question

For what value of k will the relation S={(2k+3,1),(3k-1, -2)} not be a function?

Answer 1

4

Explanation:

It will not be a function when the x-coordinates equal.

2k+3=3k-1

Subtract 2k on both sides:

3=1k-1

Add 1 on both sides:

4=1k

Multiplicative identity property:

4=k