bearing in mind thatthe slope goes by several names
• average rate of change
• rate of change
• deltaY over deltaX
• Δy over Δx
• rise over run
• gradient
• constant of proportionality
however, is the same cat wearing different costumes.
we can just pick two points off the table, say (2000, 68) and (1000, 38)
[tex]\bf (\stackrel{x_1}{2000}~,~\stackrel{y_1}{68})\qquad (\stackrel{x_2}{1000}~,~\stackrel{y_2}{38}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{38}-\stackrel{y1}{68}}}{\underset{run} {\underset{x_2}{1000}-\underset{x_1}{2000}}}\implies \cfrac{-30}{-1000}\implies \cfrac{3}{100}[/tex]
