Using limits, find the value(s) of begin mathsize 14px style c end style such that begin mathsize 14px style f straight left parenthesis x straight right parenthesis equals open curly brackets table row cell square root of x plus 8 end root straight comma space x less or equal than 1 end cell row cell x plus c comma space x greater than 1 end cell end table close end style is continuous at begin mathsize 14px style x equals 1 end style