Question

Determine o Zero das funções:

y=7x-14

y=5/3x-3

f(x)=x/7+1/9

y=f(x)=8x-2

Answer 1

y = 7x-14
7x-14 = 0
7x = 14
x = 14/7
x = 2

y = 5/3x-3
5/3x-3 = 0
5/3x = 3
9x = 5
x = 5/9

y = x/7+1/9
x/7+1/9 = 0
x/7 = -1/9
9x = -7
x = -7/9

y = 8x-2
8x-2 = 0
8x = 2
x = 2/8
x = 1/4

Espero ter ajudado. :))