Question

The graph shows the cost, C, of sending m text messages. What is the cost per message?

A. $0.05 per message
B. $0.25 per message
C. $0.15 per message
D. $0.10 per message

Answer 1

C.$0.15 I TOOK IT ON STUDY ISLAND

Explanation:

First, you want to find an exact point on the graph. What I mean by this is you want to go somewhere on the graph where the line goes through an exact y and x value.

Second, you want to figure out where this x and y value are. Where the graph first goes through two points is at (20, 3).

Third, you want to figure out what the 20 and the 3 mean. 20 is the number of messages and 3 is the dollar amount.

Finally, to calculate the amount of money per message, you divide the dollar amount (3) by the number of messages (20). So, you have 3/20. After this, simplify 3/20 to get 0.15, or 15 cents per message.