Răspuns :
A(1;-3) apartine Gf <=> f(1)= -3
f(1)=a ori 1-2=-3 => a-2=-3 => a=-1
f(-2)=-1 ori -2 -2 = 2-2=0
f(1)=-1 ori 1 -2 = -1-2=-3
f(2)=-1 ori 2 -2 = -2-2=-4
f(3)=-1 ori 3 -2 = -3-2=-5
Sper ca te-am ajutat! :)
f(1)=a ori 1-2=-3 => a-2=-3 => a=-1
f(-2)=-1 ori -2 -2 = 2-2=0
f(1)=-1 ori 1 -2 = -1-2=-3
f(2)=-1 ori 2 -2 = -2-2=-4
f(3)=-1 ori 3 -2 = -3-2=-5
Sper ca te-am ajutat! :)
Daca A(1;-3)∈Gf => f(1)=-3.
f(1)=-3 <=> a*1-2=-3 <=> a-2=-3 => a=-1.
Solutie: a=-1.
f(1)=-3 <=> a*1-2=-3 <=> a-2=-3 => a=-1.
Solutie: a=-1.