Roboguru

Pertanyaan

melalui titik (2,3) adalah...

  1. y equals x squared minus 2 x plus 1

  2. y equals x squared minus 2 x plus 3

  3. y equals x squared plus 2 x minus 1

  4. y equals x squared plus 2 x plus 1

  5. y equals x squared minus 2 x minus 3

R. RGFLSATU

Master Teacher

Jawaban terverifikasi

Pembahasan

T i t i k space b a l i k space m i n i m u m space p e r s a m a a n space k u a d r a t rightwards arrow left parenthesis 1 comma 2 right parenthesis equals open parentheses negative fraction numerator b over denominator 2 a end fraction comma fraction numerator b squared minus 4 a c over denominator negative 4 a end fraction close parentheses

negative fraction numerator b over denominator 2 a end fraction equals 1  minus b equals 2 a  b equals negative 2 a..........................1 right parenthesis  fraction numerator b squared minus 4 a c over denominator negative 4 a end fraction equals 2  b squared minus 4 a c equals negative 8 a  left parenthesis negative 2 a right parenthesis squared minus 4 a c equals negative 8 a  4 a squared minus 4 a c plus 8 a equals 0  a squared minus a c plus 2 a equals 0  a minus c plus 2 equals 0  a minus c equals negative 2....................2 right parenthesis

M i s a l k a n space p e r s a m a a n space k u a d r a t space a d a l a h space a x squared plus b x plus c space m e l a l u i space t i t i k space left parenthesis 2 comma 3 right parenthesis  y equals a x squared plus b x plus c  3 equals a left parenthesis 2 right parenthesis squared plus 2 b plus c  3 equals 4 a plus 2 b plus c  3 equals 4 a plus 2 left parenthesis negative 2 a right parenthesis plus c  4 a minus 4 a plus c equals 3  c equals 3  J a d i comma space a minus c equals negative 2 rightwards arrow a minus 3 equals negative 2 space rightwards arrow a equals 1  b equals negative 2 a rightwards arrow b equals negative 2 left parenthesis 1 right parenthesis equals negative 2

P e r s a m a a n n y a rightwards arrow y equals a x squared plus b x plus c rightwards arrow y equals x squared minus 2 x plus 3

53

0.0 (0 rating)

Pertanyaan serupa

Grafik fungsi di bawah ini, persamaannya adalah ...

250

0.0

Jawaban terverifikasi

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Ruangguru

Produk Ruangguru

Produk Lainnya

Hubungi Kami

Ruangguru WhatsApp

081578200000

Email info@ruangguru.com

info@ruangguru.com

Contact 02140008000

02140008000

Ikuti Kami

©2022 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia