The Slope of a Line
Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:
![\displaystyle m=(y_2-y_1)/(x_2-x_1)](https://img.qammunity.org/2023/formulas/mathematics/college/zkw1rebg6qix1w4pvkuol78hb2zfucnx6e.png)
The graph provided suggests the use of the points (3,-3) and (5,-3). The slope is:
![\displaystyle m=(-3+3)/(5-3)=(0)/(2)=0](https://img.qammunity.org/2023/formulas/mathematics/college/75nh5wf5ckje297vlmwgu4xh8kzjornqmp.png)
The slope of the line is 0. It corresponds to a horizontal line