Answer:
-5
Explanation:
In order to find the slope of two points you need to remember a few things.
(x,_)
The first number in an ordered pair is the x value. That determines the position of a point on the x axis. (Left or right)
(_,y)
The second number in an ordered pair is the y value. That determines the position of a point on the y axis. (Up or down)
(x,y)
Calculating slope
Take the y value from one of your ordered pairs and subtract that value from the other y value.
(10,1) and (5,2)
We will take the numbers 1 and 2.
1-2=-1
Take the x value from the y value you subtracted. Since we used 1 as our first y value we will take its x value 10
(If we started with 2 we would take its x counterpart, which is 5)
10-5=5
Divide -1 by 5 and you get -1/5
(y2-y1) divided by (x2 - x1)
:) Hope this helped