Dik:fungsi linear f: x->mx+n jika diketahui f(2)=-1 dan f(3)=2 tentukan nilai m dan n

f (x) = mx + n
f (2) = -1
f (3) = 2
m = ..? n = ...?
Jawab '
f (x) = mx + n
f (2) = 2m + n = -1
f (3) = 3m + n = 2

2m + n = -1 ··· (1)
3m + n = 2 ··· (2)
_________ --
-m = -3
m = 3

2m + n = -1 ··· (1)
2.3 + n = -1
6 + n = -1
n = -1 - 6
n = -7