Question

3) Determine, algebricanete, o zero
das funcos do 1 grau
a)y=x-5 b)y=3x-7 c)y=-3x-15 d)y=-3x+¼ e)f(x)=-x+11 f)f(x)=9-2x g)f(x)=½×+6 h)y=¾x-⅙ i)f(x)=-x+5 j)f(x)=-⅓x4 k)y=3x-12 e)y=⅖x+2​

Answer 1

Explicação passo-a-passo:

1) y=x-5

-x+y=-5

-x=-5-y

x=5+y

x=5+y,y pertence R

2) y=3x-7

-3x+y=-7

-3x=-7-y

7 1

x ----- + ------ y

3 3

7 1

x= ------ + ------ y,y pertence R

3 3

1

3) y= - 3+-----

4

3 1

- ---- + ----

1 4

3.4 1

- ------ + -----

1.4 4

12 1

- ------ + ------

1.4 4

12 1

- ------ + ------

4 4

- 12+1

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4