Using the equation y=mx+b we can solve for a (straight) line. When using this equation you plug things in and then you add your co-ordinates to make your equation fully solved. When using this equation it can be tricky to know which variables stand for what (plug-ins) but after practicing it will just come naturally. M stands for the slope so the rise/run between to points on a graph (that are on your line) and b stands for your y intercept, but don’t be fooled it can be negative OR positive depending on the line you are dealing with. Once you have those two you solve for the other then you plug in two of your co-ordinates to evaluate for the rest of the line.

For example a line that passes through the point (0,2) <on the y axis x=0 so it is an intercept> with a slope of

In the photo below I have shown you how this would look on a graph and how you would be able to find it using the information given.