Question

Cine ma ajuta si pe mine la aceste exericitii?
Sunt de clasa a 8 a
Va rog mult :)
Exercitiile sunt in poza de mai jos

Answer 1

a) f:R⇒R;  f(x)=2x-5 si A(1;m+2)∈ GF
f(x)=2x-5
f(1)=2·1-5=m+2
f(1)=2-5=m+3
f(1)= -3=m+3
f(1)⇒m= -3 -3
f(1)⇒m= -9

b)g:R⇒R; g(x)=-3x+2 si B(2m;-4)∈ Gg
g(x)= -3+2
g(2m)⇒ -3(2m) +2= -4
g(2m)⇒ -6m +3 = -4
g(2m)⇒ -6m=-4-3
         ⇒-6m= -7
         ⇒m= -7+6
         ⇒m= -1

c) h:R⇒R; h(x)= 4x+m; C(1/2;-1) ∈Gf
h(x)=4x+m
h(1/2)= 4(1/2)+m= -1
h(1/2)⇒ 4/2+m= -1
h(1/2)⇒ 2+m= -1
h(1/2)⇒m= -1-2
h(1/2)⇒m=-3

Answer 2

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