Find the slope of the line that passes through (9, 10) and (1, 19).
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) is given by the formula:
m = (y2 - y1) / (x2 - x1)
Plugging in the values from the given points, we have:
m = (19 - 10) / (1 - 9)
= 9 / (-8)
Simplifying the fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 1, we have:
m = 9 / -8
So, the slope of the line passing through (9, 10) and (1, 19) is 9 / -8.