Help, I need the following question about matrices solved

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Homework Statement



Find the image location of point (5,2) after reflection in the x-axis followed by rotation through 180 degrees about the origin.

Homework Equations



Matrix Transformation

The Attempt at a Solution



None, need help!
 
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Well, can you do the first part of the question? (ie. the reflection)
 
I know that the matrix A which represents reflection in the x-axis is:

1 0
0 -1

But don't really know anything else about solving this question as it's all new to me...
 
Forget about the matrix representation for now...

What is the image of (5,2) reflected on the x-axis?