Check the continuity of `f(x)` at `x = 1 if f(x)={2|x|, if |x| le 1 and 0, if |x| > 1`

Check the continuity of f(x) at x=1 if f(x)={2|x|,quad if |x|

Check the continuity of f(x) at x=1 and x=2 if f(x)={0,quad if quad 0

Check the continuity of the function f(x)=2x+3 at x=1

Check the continuity of the function f(x)=2x-1, if x =0

Check the continuity of the function f(x)={1+x^(2),quad if 0<=x<=1 and 1-x, if x< at x=1

Check the continuity of f(x) = {{:(x^(2)/2, if 0le x le 1),(2x^(2)-3x+3/2, if 1 lt x le 2):} at x = 1

Discuss the continuity of f(x) = {(x+2, x le 1),(x-2, x gt1):} at x=1.

Discuss the continuity of the function f(x)={(2 x , if , xlt0),( 0, if, 0 le x le 1),( 4 x, if , xgt1):}.