Find the distance between the points:
A(– 6, – 4) and B(9, – 12)
In this question, we have to use the distance formula to find the distance between two points which is given by, say for points P(x1,x2) and Q(y1,y2) then
PQ = √(x2 – x1)2 + (y2 – y1)2
AB = √{(9 – (– 6))2 + (– 12 – (– 4))2}
= √{(15)2 + (– 8)2}
= √{225 + 64}
= √289
∴ AB = 17 units
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