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-3 = 14
-2 = 11
-1 = 8
0 = 5
1 = 2
2 = -1
3 = -4
4 = -7
yang nomor 7:
rumusnya itu 4x + (-3)
yang f(-2) = 4. (-2) + (-3) = -8 + (-3) = -11
yang f(2) = 4. 2 + (-3) = 8 + (-3) = 5
yang f(-2) + f(2) = -11 + 5 = -6.
sorry ya kalau salah