Question

determine o zero de cada função do 1 grau dada à. seguir. a) f (x) = 6x - 21 b) g (x) = -5x - 12 c) h (x) = 12x d) k (x) = - 5x + 10

Answer 1

a) f(x)= 6x-21
0= 6x-21
6x=21
x=21/6

b) g(x)= -5x-12
0= -5x-12
-5x= -12
x= 12/5

c) h(x)=12x
0= 12x
12x=0
x= 0/12
x=0

d) k(x)=-5x+10
0=5x+10
5x=10
x= 10/5
x= 2

Answer 2

Resposta:

a) f(x)= 6x-21

0= 6x-21

6x=21

x=21/6

b) g(x)= -5x-12

0= -5x-12

-5x= -12

x= 12/5

c) h(x)=12x

0= 12x

12x=0

x= 0/12

x=0

d) k(x)=-5x+10

0=5x+10

5x=10

x= 10/5

x= 2