Question

if A is(-6,5) and B is(-2,3). Find 2AB?

Answer 1

answer is $4\sqrt{5}$
derive it from the formula
AB=$\sqrt{ ( x_{1}- x_{2}) ^{2} +( y_{1}-y_{2}) ^{2} }$

you will get the answer

coolbie

Answer 2

by using distance formula
AB=2 sqrt of 5
so 2AB=4 sqrt of 5