The side of a parallelogram has endpoints at (2, 1) and (3,5). The endpoints for the opposite side are (5,2) and (6, 6). What are the lengths and slopes of the pairs of opposite sides?

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.