Răspuns:
a) m = -1
b) m = -3
c) m = 1
Rezolvare:
m ∈ R, m = ?
a) f : {-1; 0; 1} → R, f(x) = x-2
A(m; -3) ∈ Gf
A(m; -3) ∈ Gf ⇔ f(m) = -3
m-2 = -3
m = -1
b) g : {0; 2; 3} → R, g(x) = -x-1
B(2; m) ∈ Gf ⇔ f(2) = m
m = -2-1
m = -3
c) h : {-2; -1; 1; 2} → R, h(x) = x+m
C(-2; -1) ∈ Gf ⇔ f(-2) = -1
-2+m = -1
m = 1
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Formulă:
[tex]\bf\red{\boxed{M(x;\:y)\in G_f\iff f(x)=y}}\\[/tex]
Succes! ❀
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