Page 3 - E-MODUL PERSAMAAN KUADRAT KELAS 9

E-MODUL MATEMATIKA

Daftar Isi

Kata Pengantar ................................................................................................................................ i

Daftar Isi ........................................................................................................................................ ii

Petunjuk Penggunaan E-Modul .................................................................................................... iii
Peta Konsep ................................................................................................................................... iv
Kompetensi Dasar .......................................................................................................................... v

Indikator Pencapaian Kompetensi .................................................................................................. v

Kegiatan Belajar 1 .......................................................................................................................... 1
A. Uraian Materi............................................................................................................................. 2
Persamaan Kuadrat ..................................................................................................................... 2

a. Bentuk Umum Persamaan Kuadrat ..................................................................................... 3
b. Menentukan Penyelesaian Akar-akar Persamaan Kuadrat .................................................. 5

c. Faktorisasi ............................................................................................................................ 5
B. Contoh Soal ............................................................................................................................... 6

C. Latihan Soal 1 .......................................................................................................................... 10
D. Tes Formatif 1 ......................................................................................................................... 11

Kegiatan Belajar 2 ........................................................................................................................ 14
A. Uraian Materi........................................................................................................................... 14

d. Melengkapkan kuadrat sempurna ...................................................................................... 14
e. Menggunakan rumus kuadratik (abc) ................................................................................ 15

B. Contoh Soal ............................................................................................................................. 17
C. Latihan Soal 2 .......................................................................................................................... 22

D. Tes Formatif 2 ......................................................................................................................... 23
Kegiatan Belajar 3 ........................................................................................................................ 26

A. Uraian Materi .................................................................................................................... 26
f. Deskriminan ....................................................................................................................... 26

g. Jumlah dan Hasil Kali Akar ............................................................................................... 29
h. Menyusun Persamaan Kuadrat Jika Akar-akarnya Diketahui ........................................... 31

i. Menyusun Persamaan Kuadrat Baru Berdasarkan Persamaan Kuadrat Sebelumnya ...... 32
D. Latihan Soal 3 .......................................................................................................................... 33

C. Tes Formatif 3.......................................................................................................................... 33

E-Modul Persamaan dan Fungsi Kuadrat Kelas IX ii