Question
Conjecture Make a conjecture about the change in the graph of parametric equations when the sign of the parameter is changed. Explain your reasoning using examples to support your conjecture.
Step 1
The graph of these equations represents a curve in the xy-plane. The parameter t determines the position of a point on the curve. Show more…
Show all steps
Your feedback will help us improve your experience
Sahil Patel and 63 other Calculus 2 / BC educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Conjecture (a) Use a graphing utility to graph the curves represented by the two sets of parametric equations. $$\begin{array}{l}{x=4 \cos t} & {x=4 \cos (-t)} \\ {y=3 \sin t} & {y=3 \sin (-t)}\end{array}$$ (b) Describe the change in the graph when the sign of the parameter is changed. (c) Make a conjecture about the change in the graph of parametric equations when the sign of the parameter is changed. (d) Test your conjecture with another set of parametric equations.
Conics, Parametric Equations, and Polar Coordinates
Plane Curves and Parametric Equations
For the parametric curve in Exercise $1,$ make a conjecture about the sign of $d^{2} y / d x^{2}$ at $t=-1$ and at $t=1,$ and confirm your conjecture without eliminating the parameter.
Analytic Geometry in Calculus
Tangent Lines and Arc Length for Parametric and Polar Curves
For the parametric curve in Exercise $42,$ make a conjecture about the sign of $d^{2} y / d x^{2}$ at $t=\pi / 4$ and at $t=7 \pi / 4,$ and confirm your conjecture without eliminating the parameter.
PARAMETRIC AND POLAR CURVES; CONIC SECTIONS
Parametric Equations; Tangent Lines and Arc Length for Parametric Curves
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD