Question

How do you graph `y=-4`?

Answer 1

See a solution process below:

Explanation:

`y = -4` is by definition a horizontal line. For each and every value of `x`, `y` is equal to `-4`. So, this is a straight line, parallel with the `x` axis, crossing the `y` axis at `-4`:

graph{y= -4 + 0x [-14, 14, -7, 7]}