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1 answer:
The total charges of both companies is the same at 24 months.
<h3>The equation of the scenarios</h3>We have:
<u>Company one:</u>
- Set up fee - $20
- Service plan-$25/month
- Phone payment-$40/month
This means that:
y = 20 + 25x + 40x
y = 20 + 65x
<u>Company two:</u>
- Set up fee-$30
- New phone-$700
- Service plan-$35/month
This means that:
y = 30 + 700 + 35x
y = 730 + 35x
<h3>The graph of both companies</h3>See attachment
<h3>The point of intersection</h3>On the attached graph, the point of intersection is at
(x, y) = (24, 1558)
This means that the total charges of both companies is the same at 24 months.
<h3>The better deal</h3>On the long run, phone company two has a better deal.
On the short run, phone company one has a better deal.
Because the function have lesser values after the point of intersection.
Read more about linear function at:
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