Respuesta :

 

Hello : let  A(3,-6)    B(-3,0)
the slope is :   (YB - YA)/(XB -XA)
(0+6)/(-3-3)  = -1
an equation is : y=ax+b     a is a slope

y = -x +b

 

the line through point  (-3,0) :  0 =-(-3)+b
b = -3 
the equation is : y =-x-3