Determine whether the dilation is an enlargement or a reduction.

(1 point)
A. AB is an enlargement of A'B' by a scale factor of 2.
B. A'B is an enlargement of AB by a scale factor of 2.
C. A'B is a reduction of AB by a scale factor of ¿
D. AB is a reduction of A'B' by a scale factor of ÷

1 answer

To determine whether a dilation is an enlargement or a reduction, we need to look at the scale factor used in the dilation:

  1. If the scale factor is greater than 1, it is an enlargement.
  2. If the scale factor is between 0 and 1, it is a reduction.

Now let's analyze each option:

A. AB is an enlargement of A'B' by a scale factor of 2.

  • Scale factor is 2 (>1), so this is an enlargement.

B. A'B is an enlargement of AB by a scale factor of 2.

  • Scale factor is 2 (>1), so this is also an enlargement.

C. A'B is a reduction of AB by a scale factor of \(\frac{1}{2}\).

  • Scale factor is \(\frac{1}{2}\) (<1), so this is a reduction.

D. AB is a reduction of A'B' by a scale factor of \(\frac{1}{2}\).

  • Scale factor is \(\frac{1}{2}\) (<1), so this is a reduction.

In summary:

  • Options A and B are enlargements.
  • Options C and D are reductions.

So, if you are looking for a reduction, the correct answers are C and D. If you are looking for an enlargement, it would be A and B.

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