Make a conjecture. how could the distance formula and slope be used to classify triangles and quadrilaterals in the coordinate plane? check all that apply.

 the distance formula to find the length of the sides... opposite sides equal it could be a rectangle or parallelogram all sides equal, square or rhombus adjacent equal, kite and then the slope is used to check angles if the product of the 2 lines in -1 the lines are perpendicular (right angle) the the slopes of 2 lines are the same the sides are parallel.    

I think this is it ^_^

The answer is 10. and if you go by pemdas you would 1. multiplication 2. division 3. addition 4. subtraction