Question

2) Dada as funções afins f(x) = 6x + 84 e g(x) = - 4x - 6, calcule:
a) f(-7)
e) f(2) + g(-10)
b) g(5)
f) g(4)-f(-3)
c) g(0)
g)
f(-5)
g(3)
d) f(5)

Answer 1

Resposta:

a) f(-7)

f(-7)= 6* (-7) + 84= 83 + 84= 167

b) g(5)

g(5)= 6*5 + 84= 114+ 84= 198

c) g(0)

= 0

d) f(5/3)

f( 5/3)= f (5/3) + 6* (5/3) + 84= 91,6 + 84 = 176,6

e) f(2) + g(-10)

f(2) + 6* 2 +84 = 96 + 84 = 180

g(-10) +6* (-10) + 84 = 24 + 84 = 108

f) g(4) - f(-3)

g(4) = 4*4 + 6 = -16+ 6 = -10

f(-3)= 6*(-3) + 84 = -18 + 84 + 66

Espero ter ajudado !!