Question

Пожалуйста решите срочно!!! даю 50 баллов

Answer 1

$A(-2;9)\ \ ,\ \ B(1;-2)\ \ ,\ \ \ y=kx+b\ \ ,\\\\\left\{\begin{array}{l}9=-2k+b\\-2=k+b\ |\cdot 2\end{array}\right\ \oplus \ \left\{\begin{array}{l}5=3b\\k=-2-b\end{array}\right\ \ \left\{\begin{array}{l}b=\dfrac{5}{3}\\k=-2-\dfrac{5}{3}\end{array}\right\ \ \left\{\begin{array}{l}b=\dfrac{5}{3}\\k=-\dfrac{11}{3}\end{array}\right\\\\\\\boxed{\ y=-\dfrac{11}{3}\, x+ \dfrac{5}{3}\ }$