If Q (0, 1) is equidistant from P (5, - 3) and R (x, 6), find the value of x.
A
x = 4
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B
x = -4
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C
x = 5
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D
x = -5
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Solution
The correct options are A x = 4 B x = -4 PQ = QR √(5−0)2+(−3−1)2=√(0−x)2+(1−6)2 √(5)2+(−4)2=√(−x)2+(−5)2 √25+16=√x2+25 41=x2+25 16=x2 x=±4 Therefore, point R is (4, 6) or ( - 4, 6).