Question

Graficul frunctiei f:(0 ; 1; 2; 3 ; 4; ) -> (3; 4; 5; 6 ; 7; ) ; f(x) = x + 3

Answer 1

x=0, y=f(x)=3   A(0,3)
x=1, y=1+3=4    B(1,4)
x=2, y=2+3=5    C(2,5)
x=3, y=3+3=6,     D(3,6)
x=4, y=4+3=7    E(4,7)
se reprezinta punctele A, B, C, D , E in sistemul de axa xOy  si se unesc