Question

4) Determine a raiz ou zero de cada função
a)y=2x-6 B)y=-5x+125 C)y=13x-26 D)=y-x+4​

Answer 1

Explicação passo-a-passo:

a)

y = 2x - 6

y = 0 =>

2x - 6 = 0 =>

2x = 6 =>

x = 6/2 =>

x = 3

b)

y = -5x + 125

y = 0 =>

-5x + 125 = 0 =>

-5x = -125 =>

x = -125/-5 =>

x = 25

c)

y = 13x - 26

y = 0 =>

13x - 26 = 0 =>

13x = 26 =>

x = 26/13 =>

x = 2

d)

y = -x + 4

y = 0 =>

-x + 4 = 0 =>

-x = -4 =>

x = -4/-1 =>

x = 4