We have to write the point-slope form equation of a line that pass through points (5,12) and (4,10).
The point-slope form can be written as:

where (x0,y0) are the coordinates of any point in the line and m is the slope of the line.
Then, we can start by calculating the slope of the line as:

The slope-point equation for the line can be written differently depending on the point selected.
Using the point (5, 12) this line's point-slope form equation is:

Using the point (4, 10) this line's point-slope form equation is:

Answer:
Using the point (5, 12) this line's point-slope form equation is: y-12=2(x-5).
Using the point (4, 10) this line's point-slope form equation is: y-10=2(x-4).