Question

For the function r(x) = 3/4cot(x) the x-intercepts occur at ____ radians.

Answer 1

That's 3cot(x)/4, right and not 3/(4cot(x))?

Answer 2

And I'm assuming that r stands for radius and this is being done in polar coordinates?

Answer 3

Yes

Answer 4

I think it's wherever cosine =0. The only time it should cross the y axis is when r=0.

Answer 5

cot(x)=cos(x)/sin(x). Cotangent = 0 when cosine =0.

Answer 6

That graph is not a polar graph, so r=y? and it is rectangular coordinates you want? Either way the method of solution is the same.