Question

Calcule a raiz das funções

a) f(x)=3x-9
b) y=5x-15
c) y=4x-6
d) f(x)=-2x+3

Answer 1

a) 3x-9=0
3x=9
x=9/3
x=3

b)5x-15=0
5x=15
x=15/5
x= 3

c)4x-6=0
x=6/4
x=3/2

d)-2x+3=0
x=-3/-2
x=3/2