Mathematics, 22.07.2019 11:00 oakleylynn

Aprepaid cell phone charges a preset number of minutes to use text messaging. the graph represents y, the number of minutes used for x, the number of text messages sent and received. is there a direct variation? which equation represents the relationship? a .yes, y = 2x. b. yes, y = 20x. c. no, y = x + 10. d. no, y = x + 20.

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