Respostas
Resposta:
Boa Noite
1) F(x) = 2x² + 12
A) F(0) = 2 * 0² + 12 B) F(2) = 2 * 2² + 12
F(0) = 2 * 1 + 12 F(2) = 2 * 4 + 12
F(0) = 2 + 12 F(2) = 8 + 12
F(0) = 14 F(2) = 20
C) F(-3) = 2 * 3² + 12 D) F(5) = 2 * 5² + 12
F(-3) = 2 * 9 + 12 F(5) = 2 * 25 + 12
F(-3) = 18 + 12 F(5) = 50 + 12
F(-3) = 30 F(5) = 62
F) F(12) = 2 * 12² + 12
F(12) = 2 * 144 + 12
F(12) = 288 + 12
F(12) = 300
2) F(x) = -x + 4 [ -2, 5]
a) F(-2) = -2 + 4 = 2 b) F(-1) = -1 + 4 = 3
c) F(0) = 0 + 4 = 4 d) F(1) = 1 + 4 = 5
e) F(2) = 2 + 4 = 6 f) F(3) = 3 + 4 = 7
g) F(4) = 4 + 4 = 8 h) F(5) = 5 + 4 = 9
3) F(10) = 2 * 10 + 3 = 23
4) F(6) = -3 * 6 + 18 = 0