coordinate geometry.. the value for which the dist betw the points a( 3,-1) and b (11,y)
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(a) 5, -7
Step-by-step explanation:
Distance covered=10 units
root of (3-11)²+( -1-y)² = 10 units
squaring on both sides to remove the root
64+1+y²+2y=100
y²+2y-35=0
y²+7y-5y-35=0
y(y+7)-5(y+7)=0
(y+7)(y-5)=0
y = -7 and y = 5
Hope the answer will help you
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