Fungsi f ditentukan dengan rumus f(x) = ax +b. jika f(-8)= -14 dan f(3) = 8 nilai dari f(9) adalah
dimasrizqi11
F(x) = ax+b f(-8) = -8a + b = -14 f(3) = 3a + b = 8 - -11 a = -22 a = 2 a disubstitusikan ke persamaan 3a + b = 8 3.2 + b = 8 6 + b = 8 b = 8-6 b = 2
f(x) = ax+b f(9) = 2.9 + 2 = 18+2 = 20
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Nadia9900
F(x) = ax +b F(-8) = -8a + b = -14 F(3) = 3a + b = 8
f(-8) = -8a + b = -14
f(3) = 3a + b = 8 -
-11 a = -22
a = 2
a disubstitusikan ke persamaan
3a + b = 8
3.2 + b = 8
6 + b = 8
b = 8-6
b = 2
f(x) = ax+b
f(9) = 2.9 + 2
= 18+2
= 20
F(-8) = -8a + b = -14
F(3) = 3a + b = 8
-8a + b = -14
3a + b = 8 -11a
-22 A = 2
3a + b = 8
3*2 + b = 8
6 + b = 8
B = 8-6
B = 2
F(9) = 9*2 + 2
F(9) = 18 + 2
F(9) = 20