Question

Se considera functia f:{-1.1}->R, f(x)=2x+1. Sa se afle imaginea functiei.​

Answer 1

Răspuns:

f(-1)=2*-1+1=-2+1=-1

f(0)=2*0+1=1

f(1)=2+1=3

Im(f)={-1,1,3}