Question

ajutor va rog e urgent dau coroana pls ​
ex 1 2 3 4 5

Answer 1

1. b si d

2.pt ca f(1) nu poate fi si 4 si 6

3. calculam f(-1)=0,

f(0)=1

f(1)=2

f(2)=3

Da, reprezintă o functie

4. a)A={0,1,2,3}

B={1,2,3}

b)Imf={1,2,3}

c) Gf={(0,1),(1,2),(2,2),(3,3)}

5. a)A={-1,0,1,2,3}

b) Imf={-4,0,4,8,12}

c)f(x)=2x