Jawaban:
-1
Penjelasan dengan langkah-langkah:
(g•f)(x) = g(f(x))
= g(2x + 4)
= (2x + 4)² - 1
= 4x² + 16x + 16 - 1
= 4x² + 16x + 15
(g•f)(-2) = 4(-2)² + 16(-2) + 15
= 4.4 - 32 + 15
= 16 - 32 + 15
= -1
KoMPoSiSi FuNGSi
-
f (x) = 2x + 4
g (x) = x² - 1
(g o f) (x) = g (f(x))
(g o f) (x) = (2x + 4)² - 1
(g o f) (x) = 4x² + 16x + 16 - 1
(g o f) (x) = 4x² + 16x + 15
maka,
(g o f) (-2) = 4(-2)² + 16(-2) + 15
(g o f) (-2) = 16 - 32 + 15
(g o f) (-2) = -1
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Jawaban:
-1
Penjelasan dengan langkah-langkah:
(g•f)(x) = g(f(x))
= g(2x + 4)
= (2x + 4)² - 1
= 4x² + 16x + 16 - 1
= 4x² + 16x + 15
(g•f)(-2) = 4(-2)² + 16(-2) + 15
= 4.4 - 32 + 15
= 16 - 32 + 15
= -1
KoMPoSiSi FuNGSi
-
f (x) = 2x + 4
g (x) = x² - 1
(g o f) (x) = g (f(x))
(g o f) (x) = (2x + 4)² - 1
(g o f) (x) = 4x² + 16x + 16 - 1
(g o f) (x) = 4x² + 16x + 15
maka,
(g o f) (-2) = 4(-2)² + 16(-2) + 15
(g o f) (-2) = 16 - 32 + 15
(g o f) (-2) = -1
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