course Mth 271
6/6/2010 around 6:59 pm
'access: 14-32-877 name: Joe Rasnake
title: Query 2
002. Query 2
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Question: `qNote that there are four questions in this assignment.
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Question: `q001. Recall the stock value problem, where March, July and December values were $5000, $5300 and $5500.
Construct a graph of stock value vs. number of month (e.g., 1 for Jan, 2 for Feb, etc.). You will have three points on your graph, one corresponding to the March value, one to the July value, and one to the December value. Stock value will be on the y axis and month number on the x axis. Your first point, for example, will be (3, 5000), corresponding to $5000 in March.
Connect your three points with straight lines--i.e., connect the first point to the second and the second to the third.
What is the slope of your line between the first and second point, and what is the slope of your line between the second in the third point? Recall that slope is rise / run.
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Your solution:
Month | Amount
3 | 5,000
7 | 5,300
12 | 5,500
First slope = 300/4 = $75 per month
Second slope = 200/5 = $40 per month
confidence rating #$&*
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Self-critique: OK
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Self-critique rating #$&* 3
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Question: `q002. Look at your results for the slopes, and look the results for the average rates of change. What do you notice? In what way then does the graph represent the average rate of change?
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Your solution:
The graph is increasing at a decreasing rate.
confidence rating #$&*
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Self-critique: OK
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Self-critique rating #$&* 3
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Question: `q003. To what extent do you think your graph, consisting of 3 points with straight line segments between them, accurately depicts the detailed behavior of the stocks over the 9-month period?
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Your solution:
I feel that only having 3 points would not really say much about any given stock. Stock prices change daily.
confidence rating #$&*
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Self-critique: OK
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Self-critique rating #$&* 3
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Question: `q004. From the given information, do you think you can accurately infer the detailed behavior of the stock values over the nine-month period?
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Your solution:
If we were given daily stock prices over a 9 month time period, we would be able to create a more accurate detailed behavior for the stock. With only having 3 snap shots of the value, we would only be able to say that over the 9 month period there was an average change to the stock prices.
confidence rating #$&*
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Self-critique: OK
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Self-critique rating #$&* 3 "
&#Good work. Let me know if you have questions. &#
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