What do you get when you add two negatives

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation