Question

Please help.
The graph of a limacon curve is given. Without using your graphing calculator, determine which equation is correct for the graph.

Answer 1

IS that the graph that came with the problem?

Answer 2

I'm so lost.. They call this a limacon, but it looks just like what they called a cardioid.

Answer 3

Yes.

Answer 4

What grade are you in?

Answer 5

11th Pre-Calculus Honors.

Answer 6

is there any answer choices ?

Answer 7

what are the equations

Answer 8

A) r = 2 - 2 sin θ
B) r = 3 - 2 sin θ
C) r = 2 + 2 sin θ
D) r = 1 - 3 sin θ
I went of wolfram alpha and found out the answer, but it says without a calculator...

Answer 9

I got C

Answer 10

That one is upside down, it's the one that's just like that, but subtraction.

Answer 11

i dont think they will find out you use a graph calculator

Answer 12

I know, I would just like to know how without one for the future.

Answer 13

oh i can't help you with that , sorry but you can always look at youtube tutorials

Answer 14

It's okay, I made a 100%. Thanks guys! P.S. It was A.