The graph shows the dilation of δabc with the origin as its center. which rule describes this transformation? a) (x, y) → (2x, 2y) b) (x, y) → (0.5x, 0.5y) c) (x, y) → (x + 2, y +2) d) (x, y) → (x - 2, y - 2)

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6