Question

sa se deternime ecuatia dreptei care trece prin punctul A(1,1 )si panta m= 1

Answer 1

$\left\| \begin{array}{c} A(1,1) \in d \\ m=1 \end{array} \right | \Rightarrow y-y_A = m(x-x_A) \Rightarrow y-1 = 1(x-1) \Rightarrow \\ \\ \Rightarrow y-1 = x-1 \Rightarrow \boxed{x-y = 0}$