Math, asked by vinayak2027, 1 year ago

If the distance between the points (8,7) and (3,Y) is 13, find the value of Y.

Answers

Answered by Billina
0

distance= √(x1-x2)²+(y1-y2)²

√(3-8)²+(y-7)²=13

25+y²+49-14y=13

y²-14y+74=13

y²-14y=-61

y²-14y+7²=61+7²

(y-7)²=110

y-7=±10.5

y=10.5+7

= 13.5

y=-10.5+7

=-3.5

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