Question

How did (2,4) become a point in the graph of f(x)=(x^2-4)/(x-2)?

Answer 1

Strictly speaking (2,4) is not part of f(x) as defined.
f(x)= x+2, for x \(\ne\) 2

Answer 2

Yes, but "they" did it incorrectly. It this is in a book or question, I would ask the teacher about it... because (2,4) is not part of f(x)

Answer 3

*IF this is...

Answer 4

this is the graph my professor drew @phi