Question

yes, thats correct. the line of best fit shows that the water quality score remains above 80 for the first 40 gallons of water that are filtered. after how many gallons does the water quality decrease below 80? 50 45 60 65 done chart: bottle filter water quality test, x-axis: gallons of water processed (0 - 80), y-axis: water quality score (0 - 110), data points plotted

Explanation:

Step1: Analyze the graph

The graph is titled "Bottle Filter Water Quality Test" with the x - axis representing "Gallons of Water Processed" and the y - axis representing "Water Quality Scores". We need to find the number of gallons after which the water quality score drops below 80.

Step2: Interpret the data points

Looking at the graph, we can see that as the number of gallons processed increases, the water quality score decreases. From the options given (50, 45, 60, 65) and by analyzing the trend of the data points on the graph, we observe that around 60 gallons, the water quality score starts to go below 80. (We can see that before 60 gallons, the scores are mostly above or around 80, and after 60 gallons, the scores start to dip below 80 consistently).

Answer:

60