Question

equals \\(\frac{91 - 97}{20 - 0} = \frac{-6}{20} = \frac{-3}{10}\\)\
what does the slope represent in this\
situation?\
the water quality score decreases by 10\
points for every 3 gallons of water\
processed.\
the water quality score increases by 3 for\
every 10 gallons of water processed.\
the water quality score decreases by 3\
for every 10 gallons of water processed.\
(charts: squeeze filter water quality test 1 and test 2, with water quality score vs gallons of water processed)

Explanation:

The slope calculated is $-\frac{3}{10}$. In the context of water quality score (y - axis) and gallons of water processed (x - axis), a negative slope means as x (gallons processed) increases, y (water quality score) decreases. The slope $-\frac{3}{10}$ implies that for every 10 - unit increase in x (gallons of water processed), y (water quality score) decreases by 3 units. So the correct interpretation is that the water quality score decreases by 3 for every 10 gallons of water processed.

Answer:

The water quality score decreases by 3 for every 10 gallons of water processed.