The average cost of online photos decreased from $0.50 per print to $0.13 per print between 2002 and
2013. Find the average rate of change in the cost. Explain
what it means.

The average rate of change is -0.034 which means that the decrease is -0.034 in the cost of per print per year

Step-by-step explanation:

Given that

Price of print in 2002 = p1 =$0.50

Price of print in 2013 = p2 =$0.13

y1 = 2002

y2 = 2013

The rate of change is given by the formula:

Here decrease is the change in price and run is the difference in years.

Mathematically, it can be written as:

Putting the values

Hence,

The average rate of change is -0.034 which means that the decrease is -0.034 in the cost of per print per year

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: