Question

complete a tabela abaixo,com a funcao definida por f(x)=x2-2x

-1
0
1
2
3

Answer 1

$f(x) = x^{2} - 2x -1, 0, 1, 2, 3 f(-1)= (-1)^{2} - 2*(-1) f(-1)= 1 + 2 f(-1)=3 f(0)= (0)^{2} - 2*(0) f(0)= 0 - 0 f(0)= 0 f(1)= (1)^{2} - 2*(1) f(1)= 1 - 2 f(1)= -1 f(2)= (2)^{2} - 2*(2) f(2)= 4 - 4 f(2)= 0 f(3)= (3)^{2} - 2*(3) f(3)= 9 - 6 f(3)= 3 <span>$

portanto:
x = f(x)
-1 = 3
 0 = 0
1 = -1
2 = 0
3 = 3