Diket rumus fungsi f(x) = 6 – 2x jika f(a) = -4 dan f(-1) = -4 dan f(-1) = b nilai a-b
Jawaban Terkonfirmasi
F(a) = 6 -2a
-4 = 6 – 2a
-4 -6= -2a
-10 = -2a
-10/-2= a
5 = a
maka nilai b
f(-1) = 6 -2(-1)
b = 6 + 2
b = 8
a – b = 5 – 8
= -3