Question

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

r = 4 cos 3θ

Answer 1

about y axis graph is symmetric

Answer 2

When I graph it I get a rose curve but it looks like it has x-axis symmetry

Answer 3

but when I substitute for -r and -theta it has y axis symmetry

Answer 4

i need help I don't understand
:(

Answer 5

for y = 4cos (3x)

Answer 6

for x=4cos(3y)

Answer 7

ohh ok:) thank you