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Persamaan bayangan lingkaran x 2 + y 2 − 4 x − 20 = 0 oleh refleksi terhadap sumbu y dan dilanjutkan dilatasi [O,2] adalah ….

Persamaan bayangan lingkaran  oleh refleksi terhadap sumbu y dan dilanjutkan dilatasi [O,2] adalah ….

  1. begin mathsize 12px style x squared plus y squared minus 4 x minus 20 equals 0 end style

  2. begin mathsize 12px style x squared minus y squared minus 4 x minus 20 equals 0 end style

  3. begin mathsize 12px style x squared minus y squared minus 8 x minus 80 equals 0 end style

  4. begin mathsize 12px style x squared minus y squared plus 4 x minus 20 equals 0 end style

  5. begin mathsize 12px style x squared plus y squared plus 8 x minus 80 equals 0 end style

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Pembahasan

size 12px x to the power of size 12px 2 size 12px plus size 12px y to the power of size 12px 2 size 12px minus size 12px 4 size 12px x size 12px minus size 12px 20 size 12px equals size 12px 0 size 12px space size 12px d size 12px i size 12px c size 12px e size 12px r size 12px m size 12px i size 12px n size 12px k size 12px a size 12px n size 12px space size 12px t size 12px e size 12px r size 12px h size 12px a size 12px d size 12px a size 12px p size 12px space size 12px s size 12px u size 12px m size 12px b size 12px u size 12px space size 12px y size 12px comma size 12px m size 12px a size 12px k size 12px a size 12px space size 12px colon open parentheses table row cell size 12px x size 12px apostrophe end cell row cell size 12px y size 12px apostrophe end cell end table close parentheses size 12px equals open parentheses table row cell size 12px minus size 12px 1 end cell size 12px 0 row size 12px 0 size 12px 1 end table close parentheses open parentheses table row size 12px x row size 12px y end table close parentheses size 12px equals open parentheses table row cell size 12px minus size 12px x end cell row size 12px y end table close parentheses size 12px rightwards arrow open parentheses table row size 12px x row size 12px y end table close parentheses size 12px equals open parentheses table row cell size 12px minus size 12px x size 12px apostrophe end cell row cell size 12px y size 12px apostrophe end cell end table close parentheses size 12px left parenthesis size 12px minus size 12px x size 12px apostrophe size 12px right parenthesis to the power of size 12px 2 size 12px plus size 12px left parenthesis size 12px y size 12px apostrophe size 12px right parenthesis to the power of size 12px 2 size 12px minus size 12px 4 size 12px left parenthesis size 12px minus size 12px x size 12px apostrophe size 12px right parenthesis size 12px minus size 12px 20 size 12px equals size 12px 0 size 12px rightwards arrow size 12px x to the power of size 12px 2 size 12px plus size 12px y to the power of size 12px 2 size 12px plus size 12px 4 size 12px x size 12px minus size 12px 20 size 12px equals size 12px 0 size 12px J size 12px a size 12px d size 12px i size 12px space size 12px p size 12px e size 12px t size 12px a size 12px space size 12px d size 12px a size 12px r size 12px i size 12px space size 12px g size 12px a size 12px r size 12px i size 12px s size 12px space size 12px x to the power of size 12px 2 size 12px plus size 12px y to the power of size 12px 2 size 12px minus size 12px 4 size 12px x size 12px minus size 12px 20 size 12px equals size 12px 0 size 12px space size 12px y size 12px a size 12px n size 12px g size 12px space size 12px d size 12px i size 12px c size 12px e size 12px r size 12px m size 12px i size 12px n size 12px k size 12px a size 12px n size 12px space size 12px t size 12px e size 12px r size 12px h size 12px a size 12px d size 12px a size 12px p size 12px space size 12px s size 12px u size 12px m size 12px b size 12px 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12px colon open parentheses table row cell size 12px x size 12px double apostrophe end cell row cell size 12px y size 12px apostrophe size 12px apostrophe end cell end table close parentheses size 12px equals open parentheses table row size 12px 2 size 12px 0 row size 12px 0 size 12px 1 end table close parentheses open parentheses table row cell size 12px x size 12px apostrophe end cell row cell size 12px y size 12px apostrophe end cell end table close parentheses size 12px equals open parentheses table row cell size 12px 2 size 12px x size 12px apostrophe end cell row cell size 12px 2 size 12px y size 12px apostrophe end cell end table close parentheses size 12px rightwards arrow open parentheses table row cell size 12px 1 over size 12px 2 size 12px x size 12px double apostrophe end cell row cell size 12px 1 over size 12px 2 size 12px y size 12px double apostrophe end cell end table close parentheses size 12px S size 12px e size 12px h size 12px i size 12px n size 12px g size 12px g size 12px a size 12px space size 12px d size 12px i size 12px p size 12px e size 12px r size 12px o size 12px l size 12px e size 12px h size 12px space size 12px colon size 12px space size 12px x size 12px apostrophe size 12px equals size 12px 1 over size 12px 2 size 12px x size 12px apostrophe size 12px apostrophe size 12px space size 12px d size 12px a size 12px n size 12px space size 12px y size 12px apostrophe size 12px equals size 12px 1 over size 12px 2 size 12px space size 12px y size 12px apostrophe size 12px apostrophe size 12px. size 12px M size 12px a size 12px k size 12px a size 12px space size 12px b size 12px a size 12px y size 12px a size 12px n size 12px g size 12px a size 12px n size 12px n size 12px y size 12px a size 12px space size 12px a size 12px d size 12px a size 12px l size 12px a size 12px h size 12px colon open parentheses size 12px 1 over size 12px 2 size 12px x size 12px double apostrophe close parentheses to the power of size 12px 2 size 12px plus open parentheses size 12px 1 over size 12px 2 size 12px y size 12px double apostrophe close parentheses to the power of size 12px 2 size 12px plus size 12px 4 open parentheses size 12px 1 over size 12px 2 size 12px x size 12px double apostrophe close parentheses size 12px minus size 12px 20 size 12px equals size 12px 0 size 12px rightwards arrow open parentheses size 12px x over size 12px 2 close parentheses to the power of size 12px 2 size 12px plus open parentheses size 12px y over size 12px 2 close parentheses to the power of size 12px 2 size 12px plus size 12px 2 size 12px x size 12px minus size 12px 20 size 12px equals size 12px 0 size 12px rightwards arrow size 12px x to the power of size 12px 2 over size 12px 4 size 12px plus size 12px y to the power of size 12px 2 over size 12px 4 size 12px plus size 12px 2 size 12px x size 12px minus size 12px 20 size 12px equals size 12px 0 size 12px rightwards arrow size 12px x to the power of size 12px 2 size 12px plus size 12px y to the power of size 12px 2 size 12px plus size 12px 8 size 12px x size 12px minus size 12px 80 size 12px equals size 12px 0 size 12px J size 12px a size 12px d size 12px i size 12px space size 12px b size 12px a size 12px y size 12px a size 12px n size 12px g size 12px a size 12px n size 12px space size 12px l size 12px i size 12px n size 12px g size 12px k size 12px a size 12px r size 12px a size 12px n size 12px space size 12px x to the power of size 12px 2 size 12px plus size 12px y to the power of size 12px 2 size 12px minus size 12px 4 size 12px x size 12px minus size 12px 20 size 12px equals size 12px 0 size 12px o size 12px l size 12px e size 12px h size 12px space size 12px r size 12px e size 12px f size 12px l size 12px e size 12px k size 12px s size 12px i size 12px space size 12px t size 12px e size 12px r size 12px h size 12px a size 12px d size 12px a size 12px p size 12px space size 12px s size 12px u size 12px m size 12px b size 12px u size 12px space size 12px y size 12px space size 12px d size 12px i size 12px l size 12px a size 12px n size 12px j size 12px u size 12px t size 12px k size 12px a size 12px n size 12px space size 12px d size 12px i size 12px l size 12px a size 12px t size 12px a size 12px s size 12px i size 12px space size 12px left square bracket size 12px O size 12px comma size 12px 2 size 12px right square bracket size 12px space size 12px a size 12px d size 12px a size 12px l size 12px a size 12px h size 12px space size 12px x to the power of size 12px 2 size 12px plus size 12px y to the power of size 12px 2 size 12px plus size 12px 8 size 12px x size 12px minus size 12px 80 size 12px equals size 12px 0 size 12px. 

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Titik A(2,3) direfleksi terhadap sumbu-y kemudian dilanjutkan dengan dilatasi [O,4] maka bayangan titik A menjadi ….

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