You need to clarify whether you need the x or the y or both
We will use the followin property of logarithms:

So, we have

If you multiply both sides by 4, you get

Use H. 30 but just to let you know the x axis is along the bottom and the y is up and down. in order to pick a scale you need to fit all of the data points into the graph
The equation of the line: y = mx + b.
Therefore your answer is Equation 1: y = 2x + 7.