How do i work out the gradient ?

i need to work out the gradient of a line with the coordinates 2,1 and 5,3. i have to work it out by just using the coordinates given and i am not allowed to just count the sqaures. Please could you give me some instructions on how to work out the gradient by just knowing the coordinates.How do i work out the gradient ?
The gradient is the change in the x coordinate divided by the change in the y coordinate.





So your x coordinates are 2 and 5,


the change in the x coordinate is


5 - 2 = 3





y coordinates are 1 and 3


the change in the y coordinate is


3 - 1 = 2





So the gradient is


3/2 = 1.5





Hope that helps :)How do i work out the gradient ?
Gradient = (difference in y)/(difference in x)


= (3-1)/(5-2) = 2/3
gradient


= (3 - 1)/(5 - 2)


= 2/3
Its (3-1)/(5-2) = 2/3.