Question

Determine os zeros das funções a seguir: a) y = 5x + 2 b) y = – 2x c) f(x) = x/2 + 4 *

a) x = 2/5 b) x = 0 c) x = -4

b) x = 5/2 b) x = 0 c) x = 4

c) x = -2/5 b) x = 0 c) x = 8

d) x = -2/5 b) x = 2 c) x = -8

e) x = -2/5 b) x = 0 c) x = -8 ​

Answer 1

Resposta:

letra e

Explicação passo-a-passo:

a)  y = 5x + 2

0 = 5x + 2

-2 = 5x

x = -2/5

b) y = – 2x

0 = – 2x (-1)

0 = 2x

x = 0/2

x = 0

c) f(x) = x/2 + 4

0 = x/2 + 4

-4 =x/2

x = -4( 2)

x = -8