a.
To graph: the curve and find the initial and terminal points. Also, indicate the direction in which the curve is traced.
a.
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Answer to Problem 47RE
Initial point is
Explanation of Solution
Given information:
The parametric equations:
Use the graphing calculator to graph the given curve.
First step is to set the mode to parametric.
For that press the MODE key.
Then Scroll down to FUNC.
Then move it to right till PAR
Press ENTER key.
Now, go back to main window by quitting (to do that press and then
).
Now, press the key
Now enter the given parametric equations as shown below:
Press the WINDOW key.
Enter values
Press GRAPH (here observe the direction in which the graph is being traced.)
This is the required graph and the red arrow gives the direction in which it is traced.
To find the initial point, substitute
So, the initial point is
To find the terminal point, substitute
So, the terminal point is
b.
To find: Cartesian equation for the curve that contains the parameterized curve. Also explain what portion of the Cartesian equation is traced by the parameterized curve.
b.
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Answer to Problem 47RE
The parameterized curve traces the Cartesian curve for
Explanation of Solution
Given information:
The parametric equations:
Solve
Substitute
Thus, the required Cartesian equation is
Now,
From the graph in part (a), it is clear that the parameterized curve traces the Cartesian curve for
Chapter 0 Solutions
AP CALCULUS TEST PREP-WORKBOOK
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