Question 508881
y =3 has a slope=0, which means it is a horizontal line.  It contains all x from -infinity to +infinity.
.
A line parallel to it will be horizontal, too.
.
y = 1 will contain all x values from -infinity to +infinity, so it doubtless contains (5,1).
.
{{{graph(500,500,-10,10,-10,10,3,1)}}}