Question

amadou decides to research the relationship between the length in inches and the weight of a certain species of catfish. he measures the length and weight of a number of specimens he catches then throws back into the water. after plotting all his data, he draws a line of best fit. what is the meaning of the x - value on the line when y = 19? answer amadou caught a catfish that weighed 19 pounds. amadou caught a catfish 19 inches long. the expected weight of a catfish that is 19 inches long. the expected length of a catfish that weighs 19 pounds.

Explanation:

In a line - of - best - fit graph, the \(x\) - axis represents the independent variable (catfish length in inches) and the \(y\) - axis represents the dependent variable (catfish weight in pounds). When we are looking for the \(x\) - value on the line when \(y = 19\) (where \(y\) is weight), we are using the line of best fit to predict the \(x\) (length) value corresponding to a given \(y\) (weight) value.

Answer:

The expected length of a catfish that weighs 19 pounds.