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ICSE Class 9 Answered

PQ is a straight line of 13 units. If P has the coordinates (-5,3) and Q has the coordinates (-7,y); find the values of'y'

 

Asked by vinuss.05 | 16 Feb, 2020, 01:17: PM
Expert Answer
 
 
By Distance formula, 
 
begin mathsize 16px style fraction numerator straight y space minus space 3 over denominator negative 7 plus 5 end fraction space equals space 13
rightwards double arrow straight y space minus space 3 space equals space 13 open parentheses negative 2 close parentheses
rightwards double arrow straight y space equals 3 space minus space 26 space equals negative space 23
end style
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