Question

2)Sendo f(x)= 3x-1,calcule: a)f(2) b)f(-1) c)f(1)+f(3) d)f(-1) + f(-2)​

Answer 1

Resposta:

a)f(2) = 3.2-1 = 5

b)f(-1) = 3.(-1)-1 = -4

c)f(1) = 3.1-1 = 2

f(3) = 3.3-1 = 8

f(1)+f(3) = 2+8 = 10

d)f(-1) = 3.(-1)-1 = -4

f(-2) = 3.(-2)-1 = -7

f(-1)+f(-4) = -4+(-7) = -11