Fungsi f dinyatakn dengan rumus f (x) = ax+b .jika f (2) =3 dan f (2) =3 dan f (-3) =13 ,nilai dari -a+b adalh\ a. -12 b .-3 c . 9 d. 11
Alfarell
F (x) = ax + b f (2) = 2a + b = 3 f (-3) = - 3a + b = 13 = f(2) - f(-3) = 2a - (-3a) + (b - b) = 5a = ( 3 - 13 ) = -10 = 5a = -10 = a = -2 Mencari nilai B = 2a + b = 3 2(-2) + b = 3 -4 + b = 3 b = 7 = -a + b = -(-2) + 7 = 9
0 votes Thanks 0
5dregensleyer
F(2) => 2a + b = 3 f(3) => -3a + b = 13 _ 5a = -10 a = -10/5 a = -2 ambil salah satu bari 2a + b = 3 2(-2) +b = 3 -4 + b = 3 b = 3 + 4 b = 7 maka nilai -a + b = - (-2) + 7 = 2 + 7 = 9 jawaban C
f (2) = 2a + b = 3
f (-3) = - 3a + b = 13
= f(2) - f(-3) = 2a - (-3a) + (b - b) = 5a = ( 3 - 13 ) = -10
= 5a = -10
= a = -2
Mencari nilai B =
2a + b = 3
2(-2) + b = 3
-4 + b = 3
b = 7
= -a + b
= -(-2) + 7
= 9
f(3) => -3a + b = 13 _
5a = -10
a = -10/5
a = -2
ambil salah satu bari
2a + b = 3
2(-2) +b = 3
-4 + b = 3
b = 3 + 4
b = 7
maka nilai
-a + b = - (-2) + 7
= 2 + 7
= 9
jawaban C