Describe the graph of the equation. r = 9 sin 13t i - 9 cos 13t j

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.4: Plane Curves And Parametric Equations
Problem 13E
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Describe the graph of the equation.
r = 9 sin 13t i - 9 cos 13t j
O It is a circle of radius 9 in the xy-plane, with center at the point (13, 13).
O Itis a circle of radius 9 in the xy-plane, with center at the origin.
O Itis a circle of radius 13 in the xy-plane, with center at the origin.
O Itis a parabola in the xy-plane, with vertex at the origin.
O It is an ellipse in the xy-plane, centered at the origin, with major axis of length 9.
Transcribed Image Text:Describe the graph of the equation. r = 9 sin 13t i - 9 cos 13t j O It is a circle of radius 9 in the xy-plane, with center at the point (13, 13). O Itis a circle of radius 9 in the xy-plane, with center at the origin. O Itis a circle of radius 13 in the xy-plane, with center at the origin. O Itis a parabola in the xy-plane, with vertex at the origin. O It is an ellipse in the xy-plane, centered at the origin, with major axis of length 9.
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