anonymous
  • anonymous
In the graph below, line k, y = -k makes a 45° angle with the x- and y-axes. Complete the following: Rk Rx : (2, 5) ---->
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
the answer is (5,-2) please explain
anonymous
  • anonymous
@ganeshie8 @terenzreignz
anonymous
  • anonymous
@satellite73

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anonymous
  • anonymous
@Preetha
anonymous
  • anonymous
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anonymous
  • anonymous
@satellite73
anonymous
  • anonymous
@robtobey @ajprincess
terenzreignz
  • terenzreignz
I was wondering when you'd actually provide the graph ^_^ These are reflections, no?
anonymous
  • anonymous
they are product transformations
anonymous
  • anonymous
but yes, they're reflections i fguess
anonymous
  • anonymous
*guess
terenzreignz
  • terenzreignz
Well, first you work from right to left... what happens when you reflect the point across the x-axis (Rx) ?
anonymous
  • anonymous
it becomes negative, correct?
anonymous
  • anonymous
@terenzreignz
terenzreignz
  • terenzreignz
Not exactly... when you reflect across the x-axis, only the y-coordinate becomes negative, x stays the same. So after Rx, your point is now...?
anonymous
  • anonymous
oh!
anonymous
  • anonymous
2,-5
terenzreignz
  • terenzreignz
That's right. Now, we reflect across the other line, the line k. It's hard to go into the nitty gritty details of what actually goes on in this reflection, but suffice it to say, reflecting across the line k (actually the line y = -x) What happens to a point is that the two coordinates switch, and then both get multiplied by -1. So, for instance, the point (3,-1), after being reflected across the line k, becomes... --> (-1,3) [switch] --> (1,-3) [multiply both by -1] so now, you just do that to (2, -5) and you'll be all set ^_^
anonymous
  • anonymous
ok! thanks! i think it would've confused me if you exexplained it the long way anyways! haha thank you! @terenzreignz

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