SOLUTION: Find the distance between the pair of points: (-a,b) and (2a,4b)

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Question 325026: Find the distance between the pair of points:
(-a,b) and (2a,4b)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the distance formula,
D%5E2=%28x2-x1%29%5E2%2B%28y2-y1%29%5E2
D%5E2=%282a-%28-a%29%29%5E2%2B%284b-b%29%5E2
D%5E2=%283a%29%5E2%2B%283b%29%5E2
D%5E2=9a%5E2%2B9b%5E2
D=3sqrt%28a%5E2%2Bb%5E2%29