Question

alguem me ajuda

1) Determine a raiz ou zero das funções do 1º grau:
a) Y= 2x - 2
b) Y= 4x - 8
c) Y= 10x + 5
d) Y= 6x
e) Y= -6x +36

Answer 1

Resposta:

a) Y= 2x - 2

2x - 2 = 0

2x = 2

x = 2/2

x = 1

b) Y= 4x - 8

4x - 8 = 0

4x = 8

x = 8/4

x = 2

c) Y= 10x + 5

10x - 5 = 0

10x = 5

x = 5/10

x = 1/2

d) Y= 6x

6x = 0

x = 0/6

x = 0

e) Y= -6x +36

-6x + 36 = 0

-6x = -36

x = -36/-6

x = 6