If aABC is reflected across the yaxis, what are the coordinates of A? A(-2,-5)
B(-2,5)
C(-5,-3)
D(2,5)

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.