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=square ) (type an integer or a decimal.)

Explanation:

Step1: Identify two points on the line

The two points are \((2014, 19.0)\) and \((2018, 9.1)\).

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

Here, \(x_1 = 2014\), \(y_1=19.0\), \(x_2 = 2018\), \(y_2 = 9.1\).

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Answer:

The slope of the line is \(m=-2.475\). This means that, on average, the global sales and rentals of Blu - ray/DVD format movies (in billions of U.S. dollars) decrease by \(2.475\) billion dollars per year.