Resposta :
f(x)=ax+4
6 = a.1 + 4 => 6 - 4 = a ==> a = 2
f(x) = 2x + 4
g(x)=bx+1
6 = b.1 + 1 => 6 - 1 = b
b= 5
y = 5x + 1
6 = a.1 + 4 => 6 - 4 = a ==> a = 2
f(x) = 2x + 4
g(x)=bx+1
6 = b.1 + 1 => 6 - 1 = b
b= 5
y = 5x + 1