Pertanyaan

Persamaan garis yang tegak lurus dengan garis yang melalui titik (3,2) dan (-1,4) adalah..

y = 2x-1
y = -2x + 7

H. Eka

Master Teacher

Mahasiswa/Alumni Universitas Pendidikan Indonesia

Jawaban terverifikasi

Pembahasan

$T a h a p space p e r t a m a. T e n t u k a n space g r a d i e n space g a r i s space y a n g space m e l a l u i space t i t i k space left parenthesis 3 comma 2 right parenthesis space d a space left parenthesis negative 1 comma 4 right parenthesis m space equals space fraction numerator y subscript 2 space minus space y subscript 1 over denominator x subscript 2 space minus space x subscript 1 end fraction space equals space fraction numerator 4 minus 2 over denominator negative 1 minus 3 end fraction space equals space fraction numerator 2 over denominator negative 4 end fraction space equals space minus 1 half S e h i n g g a space m subscript 2 space y a n g space t e g a k space l u r u s space d e n g a n space m space a d a l a h m subscript 2. m space equals space minus 1 m subscript 2. open parentheses negative 1 half close parentheses space equals space minus 1 m subscript 2 space equals space 2 A k a n space d i c a r i space p e r s a m a a n space g a r i s space y a n g space m e m i l i k i space g r a d i e n space 2 G r a d i e n space p a d a space p i l i h a n space A space a d a l a h space y equals 2 x minus 1 comma space m equals 2 space G r a d i e n space p a d a space p i l i h a n space B space a d a l a h space y equals negative 2 x plus 7 comma space m equals negative 2 space G r a d i e n space p a d a space p i l i h a n space C space a d a l a h space y equals 1 half space x plus 2 y left right arrow negative y equals 1 half space x left right arrow y equals negative 1 half space x comma space m equals negative 1 half space G r a d i e n space p a d a space p i l i h a n space D space a d a l a h space y equals negative 1 half space x plus 4 comma space m equals 2$