Answer:
1/7
Explanation:
The slope of a line is the ratio of the vertical distance and horizontal distance between two points on a line.
Note that zero is tangible if the line is horizontal, and undefined if it is vertical.
Slope = ∆y / ∆x
Coordinates given: (1,8) and (8,9)?
Slope = 9 - 8 / 8 - (1)
Slope = 1 / 7
= 1 / 7