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Question
The graph below shows the total cost, in dollars, of the number of invitations purchased.

Invitations
Cost (dollars)

Number of Invitations

Which statement best describes the meaning of the coordinates of point M on the graph?
Responses
A It shows the unit rate of the graph in invitations per dollar.It shows the unit rate of the graph in invitations per dollar.
B It shows the number of invitations purchased for 1 dollar.It shows the number of invitations purchased for 1 dollar.
C It shows the unit rate of the graph in dollars per invitation. It shows the unit rate of the graph in dollars per invitation.
D It shows how much it costs for 12.50 invitations.

The correct answer is C. It shows the unit rate of the graph in dollars per invitation. In other words, it represents how much each invitation costs in dollars.