A polygon is graphed on a coordinate grid with (x, y) representing the location of a certain point on the polygon. The polygon is transformed using the rule (x, y) -> (ax, ay).
Which statement must be true?
F If a is greater than 1, the image of the polygon is congruent to the polygon.
G If a is between 0 and 1, the image of the polygon is smaller than the polygon.
H If a is greater than 1, the image of the polygon is smaller than the polygon.
J If a is between 0 and 1, the image of the polygon is congruent to the polygon.