Given function f(x) =

Left hand limit at x = 1:

= 1 – 1 + 2 – 2

= 0

Right hand limit at x = 1:

= 1 – 1 + 2 – 2

= 0

Also, f(1) = 4

As we can see that,

Therefore,

f(x) is not continuous at x = 1