Question

check the continuity of the following indicated points f(x) =2x+3 at x=1

Answer 1

limx-1+ 2x+3=2×1+3=5
limx-1- 2x+3=2×1+3=5
limx-1 2x+3=2×1+3=5
f is continuous at x=1 because LHL=RHL

Answer 2

this is the answer see in image