High School

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The graph represents revenue in dollars as a function of greeting cards sold.

A coordinate plane shows "Greeting Card Revenue," with the number of cards sold on the x-axis and revenue in dollars on the y-axis. A line starts at (0, 0) and passes through (2, 8), (4, 16), and ends at (5, 20).

Which equation represents the function shown on the graph?

A. [tex] y = x [/tex]
B. [tex] y = 2x [/tex]
C. [tex] y = 4x [/tex]

Answer :

Answer: The equation that represents the graph is y=4x.

Step-by-step explanation: If you plug in just one coordinate in each equation, you will find that these are the following outcomes no matter which coordinate you pick(but I'm picking (2,8) for your view):

y=x , 8=2

y=x , 8=2

y=2x , 8=4

y=4x , 8=8(ONLY CORRECT STATEMENT)

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Rewritten by : Batagu