Table of contents
- 0. Review of College Algebra4h 43m
- 1. Measuring Angles39m
- 2. Trigonometric Functions on Right Triangles2h 5m
- 3. Unit Circle1h 19m
- 4. Graphing Trigonometric Functions1h 19m
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations1h 41m
- 6. Trigonometric Identities and More Equations2h 34m
- 7. Non-Right Triangles1h 38m
- 8. Vectors2h 25m
- 9. Polar Equations2h 5m
- 10. Parametric Equations1h 6m
- 11. Graphing Complex Numbers1h 7m
10. Parametric Equations
Graphing Parametric Equations
2:11 minutes
Problem 1
Textbook Question
Textbook QuestionIn Exercises 1–8, parametric equations and a value for the parameter t are given. Find the coordinates of the point on the plane curve described by the parametric equations corresponding to the given value of t. x = 3 − 5t, y = 4 + 2t; t = 1
Verified Solution
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
2mPlay a video:
Was this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Parametric Equations
Parametric equations express the coordinates of points on a curve as functions of a variable, often denoted as 't'. In this case, x and y are defined in terms of t, allowing for the representation of curves in a two-dimensional plane. Understanding how to manipulate these equations is essential for finding specific points on the curve.
Recommended video:
08:02
Parameterizing Equations
Substitution
Substitution is a fundamental algebraic technique used to evaluate expressions by replacing a variable with a specific value. In the context of parametric equations, substituting the given value of t into the equations for x and y allows us to calculate the corresponding coordinates of the point on the curve.
Recommended video:
04:42
Solve Trig Equations Using Identity Substitutions
Coordinate System
A coordinate system provides a framework for locating points in a plane using pairs of numbers (x, y). In this exercise, understanding the Cartesian coordinate system is crucial, as it allows us to interpret the results of the parametric equations and visualize the point's position in relation to the axes.
Recommended video:
05:32
Intro to Polar Coordinates
Watch next
Master Introduction to Parametric Equations with a bite sized video explanation from Patrick Ford
Start learning