Question

Bagaimanan cara menyatakan fungsi dengan rumus fumgsi?

Answer 1

Contoh
f(5) = 32
f(-2) = -3

f(x) = ax + b

f(5) = 5a + b = 32
f(-2) = -2a + b = -3     
          7a + 0 = 35
          a = 35/7
           a = 5
f(5) = 5a + b = 32
      =5.5 + b = 32
       =25 + b = 32
       =b  = 32- 25 = 7

Jadi, a = 5, b = 7