Step-by-step explanation:
Hey there!
The given points are; (1,-3) and (3,1).
Note: Use double point formula.
[tex](y - y1) = \frac{y2 - y1}{x2 - x1} (x - x1)[/tex]
~ Put all values.
[tex](y + 3) = \frac{ - 1 - 3}{3 - 1} (x - 1)[/tex]
~ Simplify it.
[tex]y + 3 = - 2x + 2[/tex]
[tex]2x + y + 1 = 0[/tex]
Therefore, the eqaution is; 2x+y+1= 0.
Hope it helps....
