The line connecting the points on the graph is shown below:
From it we notice that to get to the first point of the lineto the second we need to:
• Move down 6 squares; since each square has a length of 2 units this means that we move 12 units down.
,
• Move 5 units to the right.
Therefore, we have that:
[tex]\begin{gathered} \Delta y=-12 \\ \Delta x=5 \end{gathered}[/tex]
and that:
[tex]\text{ average rate of change=-}\frac{12}{5}[/tex]
