Question

CHECK MY ANSWER?
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.

r = -5 - 5 cos θ

I got y-axis.

Answer 1

do u have a graph to attach

Answer 2

@jim_thompson5910 @ganeshie8 @mathstudent55 anybody? please check my answer?

Answer 3

there is no graph with the problem. i plugged it into wolfram alpha

Answer 4

I don't really like how wolfram alpha sets up their graphs and how there's no customization

The online grapher "fooplot" is a better choice for polar plots

http://fooplot.com/plot/dreqosz0s8

Answer 5

Well that looks completely different from the wolfram alpha one!

Answer 6

From wolfram I got that the graph was symmetric along the y axis and with this one im getting its symmetric along the x axis..

Answer 7

what did you type into wolfram alpha?

Answer 8

-5 - 5 cos θ

Answer 9

I see. It's thinking you want to graph y = -5-5*cos(x) on the regular cartesian xy coordinate system (not the polar coordinate system)

Answer 10

if you type in "-5 - 5 cos θ polar", that key term "polar" at the end, you get a polar graph

Answer 11

Oh, alright, I see...

Answer 12

fooplot is still a better choice though because you can move the graph around, zoom in/out, etc

Answer 13

So it seems my graph will be symmetrical along the x axis after all

Answer 14

correct

Answer 15

Thank you very much for your help : )

Answer 16

you're welcome