Respostas

2014-06-12T12:47:36-03:00
F(3)=-5.(-14)+K
F(3)=70+K
70+K=0
K=-70

F(10)=-5.(10)+K
F(10)=-50+K
-50+K=0
K=50
2014-06-12T13:25:31-03:00
F(x) = -5x + k e f(3) = -14. Então, temos:
a)  k = ? ⇒  -14 = -5.3 + k ⇒  -14 = -15 + k ⇒  k = 1
b)  f(10) = ?  ⇒  f(10) = -5.10 +1 = -50 + 1 = -49 ⇒  f(10) = - 49