The transformation rule is
(x, y) → (2x, 2y+1)
Two tranformation were don
1) Dilation
2) Translation
1) Both coordinates were multiplied by 2, this value represents a dilation factor. It indicates that the figure was enlarged by factor 2. → You'd expect the resulting image to be twice as big as the original one.
2) One unit was added to the y-coordinate.
When you add a determined value "k" to the y-coordinates it translates into a vertical movement up for "k" units.
In this case, the figure was moved up one unit.
So the resulting image will be similar to the original and one unit up. The correct option is A.
