Fimd value of a if distance between points a(-3,14) b(a,-5) is 9 units
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Answer:
used distance formula.
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Answer:
Explanation:
√(X2-x1)2 +(y2-y1)2=distance
√(a+3)2 + (-5-14)2 = 9units
√ a2 +2×a×3+9+(-19)2=9u
√ a2 +6a+361=9u
Squaring on both sides
a2 +6a+361=81
a2 +6a+361-81=0
a2 +6a+280=0
on solving this we get the solutio
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