Question

2) Calcule o zero da função:

a) F(x)= 2x – 4

b) Y= x + 5

c) 2x +1 = x + 6

d) F(x)= 4x + 12
​

Answer 1

Resposta:

a)

o=2x-4

-2x= -4 (-1)

x= 4÷2=2

Answer 2

a) f(0) = 2*0 - 4 = -4
b) f(0) = 0 + 5 = 5
c) f(0) = 2*0 + 1 - 0 - 6 = - 5
d) f(0) = 4*0 + 12 = 12