Two data sets and their mean absolute deviations are shown.
Study the plots of each data set and then answer the questions below.

∆abc is reflected across the x-axis and translated 2 units up to give the image ∆a'b'c' with coordinates a'(1, 1), b'(2, -1), c'(2, 1). what are the coordinates of the preimage ∆abc? a. a(-1, 1), b(-2, 3), c(-2, 1) b. a(1, 1), b(2, 3), c(2, 1) c. a(1, -3), b(2, -1), c(2, -3) d. a(1, -3), b(2, -5), c(2, -3)

What is the 12th term of b(n)=-4-2(n-1)

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36