Question

Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.

r = 3 - 4 sin θ

y-axis only
No symmetry
Origin only
x-axis only

Answer 1

@rational i really thought it was b but i was wrong..

Answer 2

also
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.

r = 3 cos 5θ

x-axis, y-axis
x-axis, y-axis, origin
y-axis only
x-axis only

I think its b

https://www.wolframalpha.com/input/?i=r%3D3+cos+5%28theta%29

im not sure though.. could you look over that?

Answer 3

Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.

r = 3 - 4 sin θ

y-axis only
No symmetry
Origin only
x-axis only

I believe its symmetric around the y axis :x
https://www.wolframalpha.com/input/?i=r+%3D+3+-+4+sin+%CE%B8

Answer 4

that doesn't look like a correct graph

Answer 5

see this for second question
https://www.wolframalpha.com/input/?i=plot+r%3D3*cos%285%5Ctheta%29

Answer 6

Your right.. yours looks more accurate .. so the answer for the second one would be D correct?

Answer 7

Yep

Answer 8

yey! and what about the others?

Answer 9

see it is confusing with more than one question

Answer 10

r=3-4sin(theta) is symmetric about "y-axis only"

Answer 11

You're right. want me to open more threads?

Answer 12

r=3cos(5theta) is symmetric about "x-axis only"

Answer 13

no need, i think we're done with those two questions ?

Answer 14

yeah (: I have 1 more question left on the test.. its derivatives .. mind one more round ? lol

Answer 15

Find the derivative of f(x) = negative 9 divided by x at x = -12.

72 / 5
5 / 72
6 / 5
5 / 6

Answer 16

and i know its not d

Answer 17

@rational

Answer 18

To find the derivative you must use the difference quotient formula.
F(x+h) - f(x)/ h