Question

Encontre o zero das seguintes funções afim
A)f (x)=2x-5

B)f (x)=4x+8

C)f (x)5x+12

Me ajuda prvf

Answer 1

• f(x) = ax + b

→ Iguale f(x) a 0 e isole x

a)

0 = 2x -5

5/2 = x → (5/2 , 0)

b)

0 = 4x + 8

-8/4 = x → (-2 , 0)

c)

0 = 5x + 12

-12/5 = x → (-12/5 , 0)

Answer 2

A) 2x - 5 = 0

2x = 5

x = 5/2

B) 4x + 8 = 0

4x=-8

x=-8/4

x=-2

C) 5x + 12 = 0

5x = -12

x = -12/5