Geometry: Glide Reflection Images

rachelmaddie

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I do not understand how the glide reflection was found.
 

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The notation <0, -5> tells you to move 0 units horizontally and -5 units vertically.
And then reflect it across the y-axis (ie the line x=0).
 
The notation <0, -5> tells you to move 0 units horizontally and -5 units vertically.
And then reflect it across the y-axis (ie the line x=0).
So, I would need to graph the original coordinates first in these problems?
 

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You need to start with point J (and then K and L), and first reflect it across the y-axis, then translate it. Please show us your attempt.
 
We need to see what your trouble is specifically; that's why we need to see work, not just statements that you don't understand something.

What goes wrong when you try to do a reflection?

Reflection across the y-axis just means changing the sign of the x-coordinate. The reflection of the point (4, -5) is (-4, -5). The reflection of the point (-1, 3) is (1, 3).
 
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