Answer:
The slope = 0
=================================================
Explanation:
The slope of line pass therough (x1 , y1) , (x2, y2)
slope =
![(y_(2)-y_(1) )/(x_(2)-x_(1) )](https://img.qammunity.org/2020/formulas/mathematics/middle-school/y2fllq9ixyl027z0lspq06siuzb64xnwsd.png)
So the slope using the given points (1,-3) , (-1,-3) will be:
slope =
![(-3 - (-3))/(-1-1) = (-3+3)/(-2) =(0)/(2) =0](https://img.qammunity.org/2020/formulas/mathematics/middle-school/t9wx4eald6lydxl9jpz2qytebktcee0nlm.png)
which mean that the line pass through the given points is horizontal line