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Step 1:: Identify the given information and the task at hand.
We are given a line graph and are asked to find the coordinates of the reflected points about the line $x=-3$.
Step 2:: Understand the reflection property.
Reflections have the following property: for any point $(a, b)$ on the graph, its reflection across the line $x=d$ is the point $(2d-a, b)$.
Step 3:: Find the reflected points.
So, the reflected point C' is at $(-14, 1)$.
Let's find the reflected points for each point on the graph.
Step 4:: Summarize the reflected points.
A' $(-10, 2)$, B' $(-12, 4)$, C' $(-14, 1)$.
The reflected points are:
Final Answer
The coordinates of the reflected points are A' $(- 10, 2)$, B' $(- 12, 4)$, C' $(- 14, 1)$.
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