Question

14. Calcule o zero de cada funçao.
3
a) f(x)=3x-12
c) f(x)=2x+
4
b) f(x)=-X+9
d) f(x)=-5X-6

Answer 1

Resposta:

14. Calcule o zero de cada funçao.

3

a) f(x)=3x-12

f(x) = 0

3x -12 = 0

3x = 12

x = 12/3

x = 4

c) f(x)=2x+

4

f(x)=0

2x = -4

x = -2

b) f(x)=-X+9

f(x)=0

x = -9

d) f(x)=-5X-6

f(x)= 0

5x = 6

x = 6/5