If f(x)={3+x,5x−1,x<−1x≥1, then find the value of f(x) at x = 0.

Answer 1

The function is a piece wise function defined at x<-1 and x>=1.

It is not defined at x=0.

Answer 2

If f(x)={3+x,5x−1,x<−1x≥1, then find the value of f(x) at x = 0.

The function is undefined over the interval [-1,1)

x=0 falls in this interval and as such, the f(x) at x=0 i.e. f(0) is undefined