Question

(PLZ HELP! 50 POINTS!)

What is the length of the line segment PQ on the coordinate grid?

(A) 10 units
(B) 20 units
(C)30 units
(D)50 units

Answer 1

The answer is D 50 units because using the distance formula x1 minus x2 is 50. That squared is 2500. y1 minus y2 is 0 and zeros squared is 0. 2500 plus 0 is then 2500 and the distance between the two points is the square root of 2500 which is 50 units.

`d = \sqrt{{(x1 - x2)}^(2) + {(y1 - y2)}^(2) }`