Question

What is an equation of the horizontial line that passes through (5,-7)

Answer 1

`y = -7`

Explanation:

Because it is a horizontal line, the line never goes up or down, therefore the slope is 0 because the
`y` value never changes.

This also means there is no need to find out where the Y-intercept is. We can simply insert our slope and
`y` value into a slope-intercept formula to find our equation.

`y = 0x - 7`

This equation can be further simplified;
`0x` can be eliminated since it is equal to 0.

Our final equation:

`y = -7`