The distance of the point P ( - 6, 8) from the origin is
By using the distance formula:
d2 = (x2 - x1)2 + (y2 - y1)2
Lets calculate distance between the points (x1 , y1) and (x2 , y2)
Here we have;
x1 = - 6, x2 = 0
y2 = 8, y2 = 0
d2 = [0 – ( - 6)]2 + [0 – 8]2
⇒ 
⇒ d = √(36 + 64)
⇒ d = √100
⇒ d = 10
So the distance between P ( - 6, 8) and origin O (0, 0) = 10
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