hiking itineraries with parametric equations and use those equations to make predictions
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Parametric Equations
Student Guide
Student Guide (continued)
Assignment Summary
For this assignment, you will represent hiking itineraries with parametric equations and use those equations to make predictions.
Background Information
Parametric equations are a set of functions defined in terms of a parameter. A parametric equation contains a horizontal and a vertical component that are both defined in terms of the parameter. The parameter can be eliminated to create a rectangular equation.
Assignment Instructions
For this project, you are expected to submit the assignment.
Step 1: Prepare for the performance task.
a) Read through the guide before you begin so you know the expectations for this assignment.
b) If there is anything that is not clear to you, be sure to ask your teacher.
c) If your wordprocessing program has an equation editor, you can insert your equations here. Otherwise, print this activity sheet and write your answers by hand.
Step 2: Complete Parts 1 and 2 in the Assignment section of this document.
a) Read all directions carefully.
b) Complete each task.
c) Insert images or screenshots of graphs when needed. Be sure that all graphs or screenshots include appropriate information such as titles, labeled axes, etc.
d) Be sure to show all your work. You will be given partial credit based on the work you show and the completeness and accuracy of your explanations.
e) Consider underlining and circling important components in the problems.
Step 3: Evaluate your project using this checklist.
If you can check each box below, you are ready to submit your project.
· Have you answered all questions in Part 1 and Part 2?
· Have you shown your work?
· Did you include an image or screenshot of a graph when requested?
· Are all your equations correct? Be sure to check your formatting carefully.
Step 4: Revise and submit your project.
a) If you were unable to check off all of the requirements on the checklist, go back and make sure that your project is complete. Save your project before submitting it.
b) Your teacher will give you further directions about how to submit your work. You may be asked to submit your responses through the virtual classroom, email it to your teacher, or print it and hand in a hard copy.
c) Congratulations! You have completed your project.
Assignment
Part 1: Write parametric equations to represent a mountain hiking trail.
The table shows the estimated distances and elevation changes between a base camp and various locations along a popular mountain trail. The distance traveled along the trail is represented by x, the elevation is represented by y, and the time from the base camp to each location is represented by t.
Distance from Base Camp 
Elevation 
Travel Time from Base Camp 

Base Camp 
0 miles 
6,990 feet 
0 hours 
Camp I 
4 miles 
8,290 feet 
10 hours 
Camp II 
8.4 miles 
10,875 feet 
21 hours 
Camp III 
11.4 miles 
13,331 feet 
28.5 hours 
Camp IV 
14.8 miles 
16,795 feet 
37 hours 
Summit 
17.2 miles 
19,675 feet 
43 hours 
1. Use the data points about the distance and elevations of the camps to graph the data points where the xcoordinate is the total distance traveled from the base camp and the ycoordinate is the elevation. Use the grid below or include a screenshot of the data plotted from a calculator. (5 points)
2. Describe the curve in the graph by completing the steps.
a) Find a reasonable interval for the values of and explain its significance. (10 points)
b) Write a linear function, x(t), for the total distance in miles hiked in terms of total time hiking in hours using the data from the table. (5 points)
c) Write a quadratic function, y(t), for elevation in terms of the total time hiking in hours using the data in the table. Find a system of three equations and three unknowns to write the equation. (10 points)
Part 2: Write and use the rectangular form of the parametric equations.
1. Using the equations from Part 1, eliminate the parameter, and write the rectangular form of the equation. (10 points)
2. Use the rectangular equation to show the elevation that a group can expect to reach after hiking 8 miles. Then determine the time it will take the group to get to that point on the mountain. (6 points)
3. Use the rectangular equation to show approximately how far a group can expect to hike before reaching an elevation of 12,000 feet. (4 points)
Copyright © Edgenuity Inc.
Copyright © Edgenuity Inc.
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