Question

Calcule a raiz ou zero da função
a) f(x)=x+2
b) f(x)=3x-5
c)y=2x+4
d)y=15x-3

Answer 1

a) f(x) = x + 2
x + 2 = 0
x = - 2

b) f(x) = 3x - 5
3x - 5 = 0
3x = 5
x = 5/ 3

c) y = 2x + 4
2x + 4 = 0
2x = - 4
x = - 4/ 2

d) y = 15x - 3
15x - 3 = 0
15x = 3
x = 3/ 15