Answer:
There's a formula: [tex]\frac{y_{1} -y_{2}}{x_{1}-x_{2}}[/tex]
Step-by-step explanation:
You take 2 points from the line, and plug it in.
For example, if the 2 points on a line were (1, 4) and (2, 7) you would set it up like this...
[tex]\frac{2-1}{7-4}[/tex]
...then solve the top and then solve the bottom so it becomes a fraction:
[tex]\frac{1}{3}[/tex]
One thing is that is that if the Y1 is from the first coordinate, then X1 should also be form the 1st coordinate
