In the graph below, line k with equation y = -k makes a 45° angle with the x- and y- axes. complete the following: rx rk : (2,5) a. (-2, -5) b. (-5, 2)

A reflection across the line y= -x (which is what this is) means that each point gets reflect such that (a,b) becomes (-b,a). 
In this case, (a,b) is (2,5). 
The means the correct answer is 
(-5,-2)

There may be a transcription error, but this is the answer

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