Question

Fie f:R=>R,f(x)=(m-1)x-2m+1 Sa se determine m€R pt care punctele A(-1;3) apartine graficului functiei.

Answer 1

f(x)=(m-1)x-2m+1
A(-1.3)
f(m)=(m-1)×(-1)-2m+1=3⇒
-m+1-2m+1=3⇒
-3m+2=3⇒
-3m=3-2⇒
-3m=1⇒m=1/-3
sucees

Answer 2

A(-1,3)€Gf => f(-1)=3 f(-1)=-m+1-2m+1 -3m+2=3 =>m=-1/3