Question

Fie functia f: R rezultă R , f(x) egal cu -2x +2. Calculati E = f(-1) - f(2) . Aveti si poza , multumesc anticipat . Problema 2

Answer 1

f(x)=-2x+2
f(-1)-f(2)= -2*(-1)+2-(-2*2+2)= 2+2-4-2= 4-6 = -2

Answer 2

f(-1) = -2*(-1) +2
f(-1)=2+2
f(-1)=4

f(2)=-2*2+2
f(2)=-4+2
f(2)=-2

E=4-(-2)
E=4+2
E=6
 
sper ca te-am ajutat!