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f(x) = - 2x + 5
b) f(3) = -2(3) + 5 = - 1
f(2) = -2(2) + 5 = 1
f(1) = -2(1) + 5 = 3
f(0) = -2(0) + 5 = 5
f(1) = -2(1) + 5 = 3
f(2) = -2(2) + 5 = 1
f(3) = -2(3) + 5 = - 1
f(4) = -2(4) + 5 = - 3
f(5) = -2(5) + 5 = - 5
f(6) = -2(6) + 5 = - 7
f(7) = -2(7) + 5 = - 9
f(8) = -2(8) + 5 = - 11
Daerah hasilnya: {-11,-9,-7,-5,-1,1,3,5}
c) {(3,-1),(2,1),(1,3),(0,5),(1,3),(2,1),(3,-1),(4,-3),(5,-5),(6,-7),(7,-9),(8,-11)}