Which of the following equations correctly

Question

0

1014

1

Which of the following equations correctly represents the distance between points (1, -1) and (-2, 2)?

https://accelerate-tda.brainhoney.com/MathML/Image.ashx?data=%24%5csmall%7bd+%3d+%5csqrt%7b(1+-+2)%5e%7b2%7d+%2b+(-1%2b2)%5e%7b2%7d%7d%7d%24

Guest May 26, 2015

+130466

+5

Best Answer

d = √[ (-2 - 1)^2 + (-1 - 2)^2] = √[3^2 + 3^2] = √[9 + 9 ] = √18 = √[9 * 2] = 3√2

CPhill May 27, 2015

CPhill · Answer 1 · 2015-05-27T12:38:42

d = √[ (-2 - 1)^2 + (-1 - 2)^2] = √[3^2 + 3^2] = √[9 + 9 ] = √18 = √[9 * 2] = 3√2