Graphing Polar Equations

Question 1

The seismic wave of an earthquake is represented by the equation r = 12.8 sin(θ), where r is measured in miles.

Revolt · Accepted Answer

The seismic wave is represented by curve having a center on the .: circular; The seismic wave is represented by curve having a center on the .: positive vertical axis; The earthquake can be felt miles from its center.: 6.4

Question 2

Which graph represents r = 2 + 2 cos(θ)?

Revolt · Accepted Answer

B: [Image: On a polar coordinate plane, a circle crosses the ...]

Question 3

What is the polar form of (x + 3)2 + y2 = 9?

Revolt · Accepted Answer

A: r = −6 cos(θ)

Question 4

What is the rectangular form of r = 8 sin(θ)?

Revolt · Accepted Answer

C: x2 + (y − 4)2 = 16

Question 5

What is the rectangular form of ?

Revolt · Accepted Answer

C: x + y = 0

Question 6

Which equations represent the lines on which the designer places the images? Check all that apply.

Revolt · Accepted Answer

A: ; C: ; E:

Question 7

On the interval [0, 2π), which points are intersections of r = 5 + 4 sin(θ) and r = −6 sin(θ)? Check all that apply.

Revolt · Accepted Answer

D: ; E:

Question 8

The seismic wave of an earthquake is represented by the equation r = 12.8 sin(θ), where r is measured in miles.

Revolt · Accepted Answer

A: ✔ circular

Question 9

In a video game, two characters follow paths represented by and , respectively. The characters travel at different speeds and could collide with each other. Which values of correspond to possible collision points? Check all that apply.

Revolt · Accepted Answer

A: ; E:

Question 10

positive polar axisnegative polar axis✔ positive vertical axisnegative vertical axis

Revolt · Accepted Answer

C: ✔ positive vertical axis

Graphing Polar Equations Answers

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