Odpowiedź :
x 1 2 3 4 6 12
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y 2 9 20 35 77 299
f(1)=2+1-1=2
f(2)=2*4+2-1=9'
f(3)=2*9+3-1=20
f(4)=2*16+4-1=35
f(6)=2*36+6-1=77
f(12)=2*144+12-1=299
y = 2x² + x - 1
D = {1,2,3,4,6,12}
f(1) = 2*1² + 1 - 1 = 2
f(2) = 2*2² + 2 - 1 = 9
f(3) = 2*3² + 3 - 1 = 20
f(4) = 2*4² + 4 - 1 = 35
f(6) = 2*6² + 6 - 1 = 77
f(12) = 2*12² + 12 - 1 = 299
x 1 2 3 4 6 12
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y 2 9 20 35 77 299