The correct answers are: 3/2, expansion; 1/4, contraction; 4, expansion; 0.8, contraction; -3, expansion.
Explanation:
If a scale factor is greater than 1, it is an expansion. This means that both 3/2 and 4 are expansions.
If a scale factor is less than 1, it is a contraction. This means that 1/4 and 0.8 are contractions.
If a scale factor is negative, we treat it as if we would a positive, but it is on the opposite side of the point of enlargement. This means that -3 would still be an expansion.
