Question

Reprezentati grafic functiile:
f : {-2; -1; 0; 1; 2; 3} -> R, f(x) = -x² + 3.

Answer 1

f(-2)=(-2)$x^{2}<span>$+3=2+3=5
A(-2,5)
f(-1)=(-1)$x^{2}$+3=1+3=4
B(-1,4)
f(0)=0$x^{2}$+3=3
C(0,3)
f(1)=1$x^{2}$+3=1+3=4
D(1,4)
f(2)=2$x^{2}$+3=4+3=7
E(2,7)
f(3)=3$x^{2}$+3=9+3=12
F(3,12)