Question

2. Consider the following relations defined from Λ to B, where Λ and B are defined as indicated. In each case, prove or disprove that f is a function from Λ to B. If f is a function frorn Л to B, determine whether or not the notation f:A-> B can be used. If not, how could Λ be changed to make the notation correct? 1+22- (g) Λ-R, l-R, and f(x) V1-3. 0 if Q 1 if 2 ERIQ (j) Λ R. and f(x)-- R, B

Answer 1

dis said to be ad,-dom A%2 う 乂乙y 크 고,, 3. a Jx'" thus d is not a

ら、 thus Not a 0 da}