Question

pentru functiile de mai jos .stabiliti Im f si reprezentati grafic multimea intr-un sistem de axe a) f :(-2,0,1,2) (-1,1,2,3,4,5,6) f(x)=x+3

Answer 1

Imf = {f(x)∈{-1,1,2,3,4,5,6} | x∈{-2,0,1,2}}
fie y∈{-1,1,2,3,4,5,6}, y =f(x)
f(-2)=-2+3=1
f(0)=0+3=3
f(1)=1+3=4
f(2)=2+3=5