diketahui f(x)=6-3x.jika f(m)=9 dan f(-3)=n, maka nilai m-n=......

- Fungsi -

f(x) = 6-3x

f(m) = 9
6-3m = 9
3m = 6-9
3m = -3
m = -1

f(-3) = n
6-3(-3) = n
6+9 = n
n = 15

maka, m-n = -1-15 = -16

semoga membantu
-vin

[tex]f(m) = 6 - 3m = 9 \\ f(m) = - 3m = 3 \\ f(m) = m = - 1 \\ \\ f( - 3) = 6 - 3( - 3) = n \\ f( - 3) = 6 + 9 = n \\ f( - 3) = 15 \\ \\ m - n = - 1 - 15 \\ m - n = -16[/tex]