If the distance between the points (x, 3) and (-x, 2) is 5. Find x
-
A.
6.0 -
B.
2.5 -
C.
(sqrt{6}) -
D.
(sqrt{3})
Correct Answer: Option C
Explanation
d2 = (y – y)2 + (x – x)2
5 = 4x2 + 1 = 25= 4x2 + 1
= 4x2 = 25 – 1= 24
x2 = (frac{24}{4})
x = (sqrt{6})