Question

Find the slope of the line through each pair of points (9, 3) , (19, -17)

Answer 1

The expression of the slope with given two points can be expresses as:

`Slope=(y_2-y_1)/(x_2-x_1)`

The givne points : (9,3) & (19, -17)

SUbstitute the values and simplify

`\begin{gathered} \text{ Slope=}(19-9)/(-17-3) \\ \text{ Slope=}(10)/(-20) \\ \text{ Slope=}(-1)/(2) \end{gathered}`

Answer : Slope = -1/2