Question 253029
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.