Question

Is f(x) continous at x=0?

Answer 1

What is f(x)?

Answer 2

Yeah what he said^^

Answer 3

f(0)=-2 lim f(x)=2 lim f(x)=-2
x->0- x->0+

Answer 4

For everyone else:\[f(0)=-2\\
\lim_{x\to0^-}f(x)=2\\
\lim_{x\to0^+}f(x)=-2\]