Point X is located at (-2, -4) and point Y at (1, -1). If line segment XY is rotated 90 degrees counter-clockwise about point X. What is the relationship between the slopes of line segment XY and line segment X'Y'? They are parallel because their slopes are the same.

They are parallel because their slopes are opposite reciprocals of each other.

They are perpendicular because their slopes are the same.

They are perpendicular because their slopes are opposite reciprocals of each other.

Samson is going shopping for sugar and butter to make three different kinds of cookies: lemon bars, peanut butter cookies, and sugar cookies. the recipe for lemon bars calls for 2 cups of flour, 2 cups of sugar, and 1 stick of butter. the peanut butter cookie recipe calls for 2 cups of flour, 4 cup of sugar and 2 stick of butter. the sugar cookie recipe calls for 1 cup of flour, 2 cups of sugar, and 2 sticks of butter. sampson has 13 cups of flour at home, and he buys 12 cups (6 pounds) of sugar and 10 sticks of butter. how many batches of each type of cookie can he make? samson can make batches of lemon bars, batches of peanut butter cookies, and batches of 09 cookies submit reset

2x minus y equals 6, x plus y equals negative 3

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?