直线y=kx+b经过点A(-2,-1)和点B(-3,0),求不等式组1/2x快`````````````````

问题描述:

直线y=kx+b经过点A(-2,-1)和点B(-3,0),求不等式组1/2x快`````````````````

将两点带入,得k=-1,b=-3,解方程-3

y=kx+b经过点A(-2,-1)和点B(-3,0),
则:-2k+b=-1,-3k+b=0
解得:k=-1,b=-3
1/2x