Question

determine a raiz das seguintes funções

a)f(x)=-2x+8


b)y=2x-9


c)f(x)=-6x+12​

Answer 1

Resposta:

A)

y=2x-8

2x-8=0

2x=8

x=8/2

x=4

c)

y=2x-3

2x-3=0

2x=3

x=3/2

e)

y=-5x-7

-5x-7=0

-5x=7

x=-7/5

g)

y=8x+1

8x+1=0

8x=-1

x=-1/8

i)

y=13x+26

13x+26=0

13x=-26

x=-26/13

x=-2