Question

I will give medal. Please help!

Answer 1

My question is:
Identify and sketch the curfvce given by the equation\[-x ^{2}-2x+4y ^{2}-8y-1=0\]

Answer 2

You must Complete the Square a couple of times. Go!

Answer 3

then what will i get?

Answer 4

You will get a form and expression that, if it is familiar, will make it trivial to identify the graph and to draw the graph. Let's see it.

Answer 5

is it a circle?

Answer 6

Maybe. If you complete the square for both x and y, you will know IF it is a circle and if so, where it is centered AND its radius!

Answer 7

I have another question..

Answer 8

Did you get the last one?

For the trigonometric location, I might be tempted just to substitute t = 0, pi/6, pi/4, pi/3, pi/2, 2ip/3, etc -- and just see what pops out.

Answer 9

yup

Answer 10

how about part a and b?

Answer 11

You're not paying attention very well. The procedure I suggested will do all of A, B, and C. Go!

Answer 12

@@......