Question

the graph at the right represents a toy air plane desending. the y-axis represents the number of feet the plane has descended, and the x-axis represents elapsed time in minutes. find the slope of the line.the slope of the line is ____

Answer 1

To find the slope of the line we have to identify two point in the line so I can see the coordinates: (-5, 3) and (5, -1), so now we can use the equation of the slope:

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

Now we replace the coordinates so:

`\begin{gathered} m=(-1-3)/(5-(-5)) \\ m=-(4)/(10) \\ m=-(2)/(5)=-0.4 \end{gathered}`