The slope of a line with a run of 3 and a rise of 9 is equal to 3.
In Mathematics and Geometry, the slope of any straight line can be determined by using the following mathematical equation;
Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)
Slope (m) = rise/run
Based on the information provided, we can logically deduce that the rise and run are as follows;
Rise = 9
Run = 3
By substituting the given data into the formula for the slope of a line, we have the following:
Slope (m) = rise/run
Slope (m) = 9/3
Slope (m) = 3