Question

dada a funcao f(x)=x-3 e os conjuntos a=-2,-1,0,1,2 e b=-6,-5,-4,-3,-2,-1,0, determine

a)D(f)
b)cd(f)
c)im(f)
d)f(-1)
e)f(5)

Answer 1

Dominio D(f) será o conjunto a=-2,-1,0,1,2 o Contradominio será cd(f) o conjunto b ou seja d(f)=-6,-5,-4,-3,-2,-1,0 Im(f)= -5,-4,-3-2,-1 f(-1)= -4 e f(5)= 2