Question

Se considera functia f: {-3,-1,0,1,2}-> A.Determinati Imf daca legea de corespondenta este:

a) f de x=3x+1


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Answer 1

Răspuns

Explicație pas cu pas:

f(-3)=3·(-3)+1=-9+1= -8

f(-1)=3·(-1)+1=-3+1=-2

f(0)=3·0+1=1

f(1)=3·1+1=3+1=4

f(2)=3·2+1=6+1=7

Imf ={-8,-2,1,4,7}