Question

What is the slope of the line y = 3?

Answer 1

Zero.

Answer 2

Thank you.

Answer 3

You Welcome.

Answer 4

One way to remember this:
the equation for a line is y = m x +b
where m is the slope and b is the x-intercept
so when you see y = 3, you can think of it as y = 0 x + 3
and you match the zero with m, the slope.

Answer 5

slope is defined by the distance y moves when x moves;

since y always equals 3; y never moves.

0/x = 0