Question

Se considera functia f:R->R,f(x)=ax+b,aflati nr reale a,b, daca punctele M(0:3) si N(-3 pe 2 : 0 ) apartine Gf

Answer 1

M(0,3)∈Gf⇔f(0)=3⇔ax0+b=3⇔b=3
N(-3/2,0)∈Gf⇔f(-3/2)=0⇔-3/2a+=0
-3/2a+3=0
-3/2a=-3
a=2
f(x)=2x+3