If P (x, y) is a point on da line segment joining da points A(6,8) & B(-8, 6) prove that x+y=2

2 answers

Are their any answers?
Clearly not true, since 6+8 ≠ 2

The slope of AB is 1/7, but the slope of x+y=2 is -1.

I suspect a typo in your points.