Question

The question and answer options are in the image below

Answer 1

`27in`

1) Looking at the graph, we can see that the length of MN is 3 units.

2) Notice that according to the question, each unit represents 3", so MN is 9" inches long.

2.2) Since the scale factor is greater than 1, (it's 3) then we'll have an image M'N' thrice larger than the Pre-image, so we can write out the following:

`\begin{gathered} MN=9in \\ k=3 \\ M^(\prime)N^(\prime)=27in \end{gathered}`

3) Hence, the answer is M'N' is 27 inches long