If f is a function and x is an element in its domain, which statement is true about the graph of f? a. the graph of f is the graph of the equation f = x. b. the graph of f is the graph of the equation x = f(y). c. the graph of f is the graph of the equation y = x. d. the graph of f is the graph of the equation y = f(x).

D. The graph of f is the graph of the equation y = f(x).

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The answer is A. The graph of f is the graph of the equation y = f(x) , for Plato Users.

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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