Question

define f(x)={x+a if x>2
{-1 if x=2
{ax+b if x<2.
How to determine the values of a and b for which f(x) is continuous in the set of real numbers.

Answer 1

see your other post for the method.

Answer 2

That is,

http://www.jiskha.com/display.cgi?id=1485688337