Fungsi f dirumuskan f(×)=a×+b.jika f(-3)=10 dan (2)=-5,maka rumus fungsinya adalah TolLong Jawab pake caranya

f(x) = ax + b

f(-3) = 10
-3a + b = 10

f(2) = -5
2a + b = -5

-3a + b = 10
2a + b = -5
___________ -
-5a = 15
a = -3

-3a + b = 10
-3(-3) + b = 10
9 + b = 10
b = 10 - 9
b = 1

rumus fungsi
f(x) = -3x + 1