Question

find the slope of the line and write a sentence explaining the meaning of the slope as a rate of change. attach the proper units. the graph approximates global sales and rentals y (in billions of u.s. dollars) of blu - ray/dvd format movies for year x. the slope of the line is m = (type an integer or a decimal.)

Explanation:

Step1: Identify two points on the line

The two points are \((2014,19.4)\) and \((2018,9.8)\).

Step2: Use the slope formula \(m=\frac{y_2 - y_1}{x_2 - x_1}\)

Here, \(x_1 = 2014\), \(y_1=19.4\), \(x_2 = 2018\), \(y_2 = 9.8\).

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Answer:

The slope of the line is \(m=-2.4\). This means that the global sales and rentals of Blu - ray/DVD format movies are decreasing at a rate of \(2.4\) billion U.S. dollars per year.