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masukan satu satu daerah asal sebagai x ke rumus f(x) = 5x - 2
- f(x) = 5.(-2) - 2 = -10 - 2 = -12
- f(x) = 5.(-1) - 2 = -5 - 2 = -7
- f(x) = 5.(0) - 2 = 0 - 2 = -2
-f(x) = 5.(1) - 2 = 5 - 2 = 3
-f(x) = 5.(2) - 2 = 10 - 2 = 8
daerah hasil adalah hasil yg tadi jadi {-12,-7,-2,3,8}
semoga membantu
x = { -2 , -1, 0, 1, 2 }
f(x) = 5x-2
-) f(x) = 5x-2
f(-2) = 5(-2) -2
f(-2) = -10-2
f(-2) = -12
-) f(-1) = 5(-1)-2
f(-1) = -5-2
f(-1) = -7
-)f(0) = 5(0)-2
f(0) = 0-2
f(0) = -2
-) f(1) = 5(1)-2
f(1) = 5-2
f(1) = 3
-) f(2) = 5(2)-2
f(2) = 10-2
f(2) = 8
daerah asal = { -12 , -7 , -2 , 3 , 8 }