Equation of a vertical line
The equation of a vertical line is:
`x=` The same number
Example
`x = 7`
No matter what value y is, x is 7.
`y = 2` `x = 7`
`y = 1` `x = 7`
`y = 0` `x = 7`
`y = -1` `x = 7`
`y = -2` `x = 7`
The graph would be plotted as follows.
And would look like this.
This is a vertical 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)