Question

Determine o zero das seguintes funçoes:
a) y=2x-6
b) f(x)=3x+12
c)y=2x

Answer 1

a) 

2x - 6 = 0
2x = 6
x = 6/2
x = 3

b)

3x + 12 = 0
3x = -12
x = -12/3
x = -4

c)

2x = 0
x = 0/2
x = 0