Question

Na função f (x) = -3x+18 , qual é o valor de f (x) quando x for igual a ( 2,3,1,0)

Answer 1

f(x) = -3 x + 18
f(2) = -3.(2) + 18
f(2) = -6 + 18
f(2) = 12

f(x) = -3 x + 18
f(3) = -3.(3) + 18
f(3) = -9 + 18
f(3) = 9

f(x) = -3 x + 18
f(1) = -3(1) + 18
f(1) = -3 + 18
f(1) = 15

f(x) = -3 x + 18
f(0) = -3.(0) + 18
f(0) = 0 + 18
f(0) = 18