Question

Determine a raiz ou zero das funções b) Y=7x. c)g (x)=2x+4 d) y=-5x+2

Answer 1

Olá.

1)

Y = 7x
7x = 0
x = 0

2)

g(x) = 2x + 4
2x + 4 = 0
2x = -4
x = -2

3)

y = -5x + 2
-5x + 2 = 0
-5x = -2
5x = 2
x = 2/5

Bons estudos.

Answer 2

b) y = 7x

7x = 0
 x = 0/7
x = 0

c) g(x) = 2x + 4

2x + 4 = 0
2x = -4
x = -4/2
x = -2

d) y = -5x + 2
-5x + 2 = 0
-5x = -2
x = 2/5

Espero ter ajudado.