If the point P (x, 3) is equidistant from the points A (7,-1) and B (6, 8), find the value of x and find the distance AP.
Coordinates are A (7,-1) and B (6, 8)
The point P (x, 3) is equidistant.
Using distance formula =
⇒ PA = PB
On squaring both sides, we get
= 
= 
= 
AP = 
= 
= 
units
46