Tolong bantu no 184 yaa
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fog(x) = 4x-1
-2 (-2x+1) + n = 4x - 1
4x - 2 + n = 4x - 1
n = -1 + 2
n = 1
f(x) = -2x + 1
f(-1/2) = 1 + 1 = 2
misal
-2x + 1 = m
-2x = m - 1
x = -1/2(m - 1)
f o g(x) = 4x - 1
f(m) = 4(-1/2(m - 1)) - 1
f(m) = -2(m - 1) - 1
f(m) = -2m + 2 - 1
f(m) = -2m + 1
f(x) = -2x + 1
f(-1/2)
= -2(-1/2) + 1
= 1 + 1
= 2