Question

Dada a função f(x) = 4x + 3, calcule
a) f(5)
b) f(9)
c) f(1) + f(2)
d) qual o valor de x para f(x) = 0?
e) qual o valor de x para f(x) = 11?

Answer 1

1- a) f(5) = 4.5 + 3
20 + 3 = 23

b) f(9) = 4.9 + 3
36 + 3 = 39

c)f(1) + f(2) = (4.1 + 3) + (4.2 + 3)
(4+3) + (8+3)
7 + 11 = 18

d) 0

e) 11