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30 votes
30 votes
15 POINTS NEED ASAP PLS!!!!

The table shows the rates for sending text messages. Are the rates proportional??
Explain.


I need this quick pls answer thanks

User Afmeva
by
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2 Answers

21 votes
21 votes

Answer:

Need a pic to answer your question

User Iamirzhan
by
2.2k points
24 votes
24 votes
Answer:
Yes
Explanation:
Remember in order for the rates to be proportional it has to have a constant rate of change and it has to go through the origin if graphed
For one this has a constant rate of change which is 3 dollars per 25 messages
Now we just have to find out if it would go through the origin (0,0)
To do so we subtract 3 dollars and then 25 messages
6-3=3
50 - 25 =25
then again 25-25=0
3-3=0
concluding that (0,0) is a solution
Thus meaning that this is a proportional relationship


Hope this helps let me know if you need more help !
User PatrykB
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3.1k points