Which of the following would be a line of reflection that would map ABCD onto itself? Square ABCD with B at 1 comma 3, A at 1 comma 1, D at negative 1 comma 1, and C at negative 1 comma 3.
x = 1
−x + y = 2
x − y = 2
2x + y = 3

Consider an example of a deck of 52 cards: example set of 52 playing cards: 13 of each suit clubs, diamonds, hearts, and spades ace 2 3 4 5 6 7 8 9 10 jack queen king clubs diamonds hearts spades what is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.