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Garis 2 x − y + 3 = 0 dirotasi dengan [ O , 9 0 ∘ ] lalu dilanjutkan dengan dilatasi oleh dengan A ( 3 , − 1 ) . Hasil transformasinya adalah…

Garis  dirotasi dengan  lalu dilanjutkan dengan dilatasi oleh open square brackets A comma 2 close square brackets dengan . Hasil transformasinya adalah…

  1. x plus 2 y plus 3 equals 0

  2. x plus 2 y plus 4 equals 0

  3. x plus 2 y plus 5 equals 0

  4. x plus 2 y plus 6 equals 0

  5. x plus 2 y plus 7 equals 0

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Substitusikan ke persamaan garis Substitusikan ke persamaan garis hasil rotasi

begin mathsize 14px style U n t u k space r o t a s i space open square brackets O comma 90 degree close square brackets open parentheses table row cell x apostrophe end cell row cell y apostrophe end cell end table close parentheses equals open parentheses table row cell cos space 90 degree end cell cell negative sin space 90 degree end cell row cell sin space 90 degree end cell cell cos space 90 degree end cell end table close parentheses open parentheses table row x row y end table close parentheses open parentheses table row cell x apostrophe end cell row cell y apostrophe end cell end table close parentheses equals open parentheses table row 0 cell negative 1 end cell row 1 0 end table close parentheses open parentheses table row x row y end table close parentheses open parentheses table row cell x apostrophe end cell row cell y apostrophe end cell end table close parentheses equals open parentheses table row cell negative y end cell row x end table close parentheses x to the power of apostrophe equals negative y space m a k a space y equals negative x to the power of apostrophe y to the power of apostrophe equals x space space space space space m a k a space x equals y apostrophe end style

 

Substitusikan ke persamaan garis

2 x minus y plus 3 equals 0 2 y to the power of apostrophe plus x apostrophe plus 3 equals 0 D e n g a n space m e n g h i l a n g k a n space tan d a space ‘ d i p e r o l e h space colon space colon space x plus 2 y plus 3 equals 0

 

begin mathsize 14px style U n t u k space d i l a t a s i space left square bracket A comma 2 right square bracket open parentheses table row cell x apostrophe end cell row cell y apostrophe end cell end table close parentheses equals open parentheses table row 2 0 row 0 2 end table close parentheses open parentheses table row cell x minus 3 end cell row cell y plus 1 end cell end table close parentheses plus open parentheses table row 3 row cell negative 1 end cell end table close parentheses open parentheses table row cell x apostrophe end cell row cell y apostrophe end cell end table close parentheses equals open parentheses table row cell 2 x minus 6 end cell row cell 2 y plus 2 end cell end table close parentheses plus open parentheses table row 3 row cell negative 1 end cell end table close parentheses open parentheses table row cell x apostrophe end cell row cell y apostrophe end cell end table close parentheses equals open parentheses table row cell 2 x minus 3 end cell row cell 2 y plus 1 end cell end table close parentheses x to the power of apostrophe equals 2 x minus 3 space space space m a k a space space x equals 1 half x to the power of apostrophe plus 3 over 2 y to the power of apostrophe equals 2 y plus 1 space space space m a k a space space y equals 1 half y to the power of apostrophe minus 1 half end style

 

Substitusikan ke persamaan garis hasil rotasi

begin mathsize 14px style x plus 2 y plus 3 equals 0 1 half x to the power of apostrophe plus 3 over 2 plus 2 open parentheses 1 half y to the power of apostrophe minus 1 half close parentheses plus 3 equals 0 left parenthesis kali straight space 2 straight space dan straight space hilangkan straight space tanda space apostrophe right parenthesis x plus 3 plus 2 y minus 2 plus 6 equals 0 x plus 2 y plus 7 equals 0 end style

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Titik A (2, 3) dicerminkan terhadap matriks , dilanjutkan dengan rotasi hasilnya adalah…

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