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P ers amaan g a r i s sin ggu n g k u r v a y = x 2 + 4 x − 5 y an g se jaja r d e n g an 2 x − y = 6 a d a l ah ....

  1. 2 x minus y minus 10 equals 0

  2. 2 x minus y plus 10 equals 0

  3. 2 x plus y plus 10 equals 0

  4. negative 2 x minus y plus 10 equals 0

  5. negative 2 x minus y minus 10 equals 0

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N. Rahayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

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A k a n space d i c a r i space g r a d i e n space left parenthesis m right parenthesis space K a r e n a space p e r s a m a a n space g a r i s space sin g g u n g space y a n g space d i m i n t a space a d a l a h space y a n g space s e j a j a r space d e n g a n space 2 x minus y equals 6 comma space m a k a space g r a d i e n n y a space a k a n space s a m a space d e n g a n space 2 x minus y equals 6. space 2 x minus y equals 6 space space ⟺ y equals stack 2 with underbrace below with m below x minus 6. space J a d i space g r a d i e n n y a space a d a l a h space m equals 2 space  A k a n space d i c a r i space t i t i k space y a n g space d i l e w a t i space o l e h space g a r i s space sin g g u n g space y equals x squared plus 4 x minus 5 space ⟹ space y apostrophe equals 2 x minus 4 space K a r e n a space g r a d i e n n y a space 2 comma space m a k a space 2 equals 2 x minus 4. space d i p e r o l e h space n i l a i space x equals 3 space U n t u k space m e n d a p a t k a n space n i l a i space y space k i t a space s u b s t i t u s i k a n space x equals 3 space k e space k u r v a space y equals x squared plus 4 x minus 5. space y equals left parenthesis 3 right parenthesis squared plus 4 left parenthesis 3 right parenthesis minus 5 space space y equals 9 plus 12 minus 5 space space equals 16 space space J a d i space t i t i k space y a n g space d i l e w a t i space g a r i s space sin g g u n g space a d a l a h space left parenthesis 3 comma space 16 right parenthesis space space  J a d i space p e r s a m a a n space g a r i s space sin g g u n g space y a n g space m e l a l u i space t i t i k space left parenthesis 3 comma space 16 right parenthesis space d a n space m equals 2 space a d a l a h space colon space y minus y subscript 1 equals m left parenthesis x minus x subscript 1 right parenthesis space space y minus 16 space space equals 2 left parenthesis x minus 3 right parenthesis space space y equals 2 x minus 6 plus 16 space space y equals 2 x plus 10 space ⟺ 2 x minus y plus 10 equals 0

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