Respuesta :

Given x(x1,y1)=(2,4)
          z(x2,y2)=(x2,y2)
         midpoint (x,y)=(-1,1)
2+x2/2=-1;4+y2/2=1
2+x2=-2;4+y2=2
x2=-4;y2=-2
z(x2,y2)=(-4,-2)
The solution to the problem is as follows:

X(2,4); Y(-1,1). Z(a,b). Y is the midpoint of XZ 

(2+a)/2=-1 
2+a=-2 
a=-4 
(4+b)/2=1 
4+b=2 
b=-2 

Then Z is (-4,-2) 

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!