Find the slope of the line that passes through (9, 9) and (1, 10).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
The slope of a line passing through two points (x1, y1) and (x2, y2) can be found using the formula:
slope = (y2 - y1) / (x2 - x1)
Applying this formula to the given points, we have:
slope = (10 - 9) / (1 - 9)
= 1 / -8
= -1/8
Therefore, the slope of the line passing through (9, 9) and (1, 10) is -1/8.