Q. 263.5( 4 Votes )


A line is of len

Answer :


SOLUTION:

The two points are (-3, 2) and (x, 10). Their length is 10.

(3+x) 2 + 64 =10
x 2 + 6x + 9 + 64 = 100
x 2 + 6x – 27 = 0

x 2 + 9x – 3x – 27 = 0
x(x + 9) – 3(x + 9) = 0
(x – 3)(x + 9) = 0
x = 3 or –9.
Therefore the required abscissa will be 3 or –9.

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