Which sequence of transformations produces an image that is not congruent to the original figure?

a. a translation of 3 units to the left followed by a reflection across the x-axis
b. a rotation of 90 clockwise followed by a translation of 6 units to the left
c. a translation of 5 units to the left followed by a dilation of a factor of 2
d. a reflection across the y-axis followed by a rotation of 180counterclockwise

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)