Question

determinati graficele functiilor a) f:{0,1,2,3,4}---->R ,f(x)=-2x+1

Answer 1

Calculăm imaginea funcției f .
f(0)=-2×0+1=1
f(1)=-2×1+1=-1
f(2)=-2×2+1=-3
f(3)=-2×3+1=-5
f(4)=-2×4+1=-7
Gf={(0;1);(1;-1);(2;-3);(3;-5);(4;-7)}