Respostas
Resposta:
A) (-2,5) (-1,0) (0,-3)(1,-4)(2,-3)
B) (-2,8)(-1,2)(0,0)(1,2)(2,8)
C) (-2,-5)(-1,0)(0,3)(1,4)(2,5)
D) (-2,-16)(-1,-8)(0,-4)(1,-4)(2,-8)
Explicação passo a passo:
A) F(x)=x²-2x-3
-2 = (-2)²-2.(-2)-3 = 4 + 4 - 3 = 5
-1 = (-1)²-2.(-1)-3 = 1 + 2 - 3 = 0
0 = (0)²-2.0-3 = 0 - 0 - 3 = 3
1 = 1²-2.(1)-3 = 1 - 2 - 3 = -4
2 = 2²-2.2-3 = 4 - 4 - 3 = -3
B) F(x)= 2x²
-2 = 2.(-2)² = 2.4 = 8
-1 = 2.(-1)² = 2.1 = 2
0 = 2.0² = 0
1 = 2.1²= 2.1 = 2
2 = 2.2² = 2.4 = 8
C) F(x) = -x²+2x+3
-2= -(-2)²+2.(-2)+3 = -4-4+3= -5
-1= -(-1)²+2.(-1)+3 = -1-2+3 = 0
0= -(0)²+2.0+3 = 0+0+3 = 3
1= -(1)²+2.1+3= -1+2+3 = 4
2= -(2)²+2.2+3 = -4+4+3 = 3
D) F(x)= -2x²+2x-4
-2= -2.(-2)²+2.(-2)-4= -2.4-4-4= -8-8=-16
-1= -2.(-1)²+2.(-1)-4= -2.1-2-4= -8
0= -2.(0)²+2.0-4=-2.0+0-4= -4
1= -2.(1)²+2.1-4= -2.1 + 2 -4 = -4
2= -2.(2)²+2.2-4= -2.4+4-4 = -8