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G a r i s sin ggu n g k u r v a y = x 3 − 10 d i t i t ik y an g b eror d ina t − 18 m e m o t o n g s u mb u x d i t i t ik … + 3 m u .

  1. open parentheses 7 over 2 comma 0 close parentheses

  2. open parentheses 5 over 2 comma 0 close parentheses

  3. open parentheses negative 7 over 2 comma 0 close parentheses

  4. open parentheses negative 5 over 2 comma 0 close parentheses

  5. open parentheses 2 over 7 comma 0 close parentheses

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N. Rahayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

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Pembahasan

O r d i n a t space equals space 18 comma space a r t i n y a space y equals negative 18 comma space a k i b a t n y a space minus 18 equals x cubed space space minus space 10 space space ⟺ space minus 8 equals x cubed space space space ⟺ space space x equals negative 2 space J a d i space d i p e r o l e h 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 negative 2 comma 18 right parenthesis space  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 i t a space t a h u space y space equals space x cubed space space minus space 10 space space s e h i n g g a space b i s a space d i p e r o l e h space y apostrophe equals 3 x squared space K a r e n a space x equals negative 2 space m a k a space g r a d i e n space g a r i s space sin g g u n g space a d a l a h space m equals 3 left parenthesis negative 2 right parenthesis squared equals 12 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 negative 2 comma 18 right parenthesis space d a n space m equals 12 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 18 space space equals 12 left parenthesis x plus 2 right parenthesis space space y equals 12 x plus 24 plus 18 space space y equals 12 x plus 42 space space  G a r i s space sin g g u n g space m e m o t o n g space s u m b u space x space a r t i n y a space n i l a i space y equals 0 comma space a k i b a t n y a space colon space space 0 equals 12 x plus 42 space ⟺ x equals negative 42 over 12 equals negative fraction numerator 7 over denominator 2 space end fraction space space space J a d i comma space g a r i s space sin g g u n g space m e m o t o n g space s u m b u space x space d i space t i t i k space left parenthesis negative fraction numerator 7 over denominator 2 space end fraction comma 0 right parenthesis space.

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