Soal Uji Kompetensi 3 2 Matematika Kelas 10 Halaman 113 114 Bab 3 Fungsi No 1-5

jawaban :

a). f (x) = 100 x + 500

f (100) = 100 x 100 + 500

= 10.000 + 500

= Rp10.500

b) f(x) = 100 x + 500

500.000 = 100x + 500

500.000 - 500 = 100 x

499.500 = 100 x

499.500
_______ = x
  100