We can calculate the slope by substituting the given points into the Slope Formula.
slope = y_2 - y_1/x_2 - x_1
Note that it does not matter which point we choose to use for ( x_1, y_1) and ( x_2, y_2), since the result of using the Slope Formula will be the same.
The slope of the line that passes through the given points is 2.
Extra
Switch Order of Points
We will confirm that it does not matter which point we choose to use for ( x_1, y_1) and ( x_2, y_2). To do so, let's change the order of points in our formula. This time we will use (2,4) for (x_1,x_2), and (0,0) for (x_1,x_2).
