use the following graph to answer he three questions

(1) which of the statements is valid

(a) lim x->1 f(x)=2

(b)lim x->1 f(x)=0

(c) lim x->1 f(x) doesnot exist

(2) what is lim x->2+ f(x)?

(a)0 (b) 2 (c) limit does not exist

(3) which ,If any, of these limits exists

(a) lim x->2+f(x)

(b) lim x-> 2- f(x)

(c) lim x-> -3 f(x)

d) none of the above