Question

The distance between the points (2,10) and (-6,-7)?

Answer 1

Use the distance formula  D= sqrt x2-x1^2+y2-y1 = sqrt. (-6-2)^2+(-7-10)^2 =(sqrt (-6-2)^2-7-10)^2 =(8-7-10)^2 =81  

Answer 2

$formula for \: distance \\ \sqrt{(x - x) {}^{2} + (y - y ) {}^{2} } \\ \sqrt{((2 - ( - 6)) {}^{2} + (10 - ( - 7)) {}^{2} } \\ \sqrt{( {8}^{2} ) + ({17}^{2} )} \\ = 8 + 17 \\ = 25$