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5. Find the value of y for which the distance between the points A(3,-1) and B(11,y)is 10 units. |
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Answer» Answer: solving by distance FORMULA Step-by-step EXPLANATION: ab Square=(11-3)square+(y+1)square=100 64+y square+1+2y=100 y square+2y-35=0 y square-5y+7y-35=0 y(y-5)+7(y-5)=0 (y-5) (y+7)=0 y=5,y=7 |
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