Question

Determine os zeros das funções a seguir:
y=5x+2
y=-2x
F(x)=x/2+4

Answer 1

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

y=-2x
0=-2x
×=0/-2=0

f(x)= x/2 +4
x/2 +4=0
x/2=-4
x=(-4).2
x=-8