Of the piecewise below, (a) find the right and left hand limit of f at x= -1. (b) Is f continuous at x= -1? Explain.
No program, meaning using a program graphing Someone else's computer, who I may not download things onto. Though, the function is straightforward.
1, x < or = to -1
-x, -1 < x < 0
1, x= 0
-x, 0 < x < 1
1, x > or = to 1
(a) right: -1
(b) I think so. Even though there are two points of discontinuity, they are removable points.
For extra help, how does one get rid of removable points of discontinuity?