Shontell spends $7 a month plus $0.10 per minute. Determine whether the cost per month is proportional to the to the number of m
inutes by graphing on the coordinate plane
2 answers:
Answer:
Not proportional
Step-by-step explanation:
Shontell spends $7 a month plus $0.10 per minute.
Let Shontell uses x number of minutes and total $y
Fixed amount = $7
Variable amount = $0.10 per minutes
In 1 minutes spends = 0.10
In x minutes = 0.10x
Total spends in a month, y = 7 + 0.10x
This is linear function not proportional equation.
Proportional equation, y=kx equation must passes through origin.
So, This is not situation of proportional equation. This is linear equation.
Now graph on coordinate plane
- x-axis represents number of minutes uses in a month.
- y-axis represents total cost spends in a month
Please find attachment for graph.
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side note: multiplying by the LCD of both sides is just to get rid of the denominators