Question

Determine a raíz de cada uma das funções
A)y=2x-8
B)y=4x+20
C)y=2x-3
D)y=-x-9
E)y=-2x+10
F)y=-5x-7
G)y=-7x+3
H)y=7x+3
I)y=13x+26​

Answer 1

Resposta:

A)0=2x-8

-2x=-8

x=8/2

x=4

B)y=4x+20

0=4x+20

-4x=20

x=-20/4

x=-5

C)y=2x-3

0=2x-3

-2x=-3

x=3/2

D)y=-x-9

0=-x-9

x=-9

E)y=-2x+10

0=-2x+10

2x=10

x=10/2

x=5

F)y=-5x-7

0=-5x-7

5x=-7

x=-7/5

G)y=8x+1

0=8x+1

8x=1

x=1/8

H)y=7x+3

0=7x+3

-7x=3

x=-7/3

I)y=13x+26

0=13x+26

-13x=26

x=-26/13

x=-2