Which is the correct mapping statement for a rotation 180∘ about the origin? (x, y)↦(y, x)
(x, y)↦(−x,−y)
(x, y)↦(−y, x)
(x, y)↦(y,−x)

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!