Question

1) Determine as raízes das funções a seguir:
a) y = 15 – 10x
b) y = - 4x + 8
c) y = 2x​

Answer 1

Iguale a zero e resolva.

a)

15 - 10x = 0

10x = 15

x = 15/10

x = 1,5

b)

- 4x + 8 = 0

4x = 8

x = 8/4

x = 2

c)

2x = 0

x = 0/2

x = 0

Resposta:

a) x = 1,5

b) x = 2

c) x = 0