You can put this solution on YOUR website! One of the rules for students is not to submit more than one similar problem.
Why are you shouting at us? All caps is shouting.
m=(y1-y2)/x1-x2)
y's are 10 and 9
x's are 12 and 3
m is the slope
The slope or gradient is the rise (y) over the run (x)
m=(10-9)/(12-3)
Do the subtraction and simplify the fraction if possible. You can leave it as a fraction.