Equation of a horizontal line
The equation of a horizontal line is
`y =` The same number
Example
`y = 7`
No matter what value `x` is, `y` is 7.
`x = 2` `y = 7`
`x = 1` `y = 7`
`x = 0` `y = 7`
`x = -1` `y = 7`
`x = -2` `y = 7`
The graph would be plotted as follows:
And would look like this.
This is a horizontal line.
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-1.4df6ee6.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-log-table-2.d516bb3.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-1.b0b0513.jpg)
![](/images/user/base/Maths/Logarithms/Reference%20Tables/reference-anti-log-table-2.f89189d.jpg)