Fungsi f dirumuskan f(×)=a×+b.jika f(2)=-1 dan f(-2)=-13,Maka rumus fungsi f(×) adalLah TolLong dijawab pake caranya iyaa

f(x) = ax + b
f(2) = -1
f(-2) = -13

f(2) » 2a + b = -1
f(-2) » -2a + b = -13
eliminasi b
2a + b = -1
-2a + b = -13
_________-
4a = 12
a = 3

substitusi a = 3 ke 2a + b = -1
2(3) +b = -1
b = -1 -6
b = -7

fungsi f(x) = 3x -7

maka rumus F(x) = 3x + (-7)