@Directrix Graph the inequality.

(x-1)2 + (y-5)2 9

Question

@Directrix  Graph the inequality.

(x-1)2 + (y-5)2 > 9

yacoub1993 · Answer

I have no idea how to do this

directrix · Answer

Is this (x-1)2 + (y-5)2 > 9  supposed to be:

(x-1)² + (y-5)² > 9 ??

directrix · Answer

@Yacoub1993   ^^^^ Need an answer to the above question.

directrix · Answer

(x-1)² + (y-5)² = 9  is a circle with center (1, 5) and radius 3. 

See attachment for how to get that.

directrix · Answer

(x-1)² + (y-5)² > 9  would be shaded outside the circle. You may be able to eliminate options.

yacoub1993 · Answer

it will be the second one. Is it

directrix · Answer

Let me look. The circle will be dashed because this equation is strictly greater than.

directrix · Answer

The first and the last options are out because the wrong section is shaded.

I'm having trouble telling the difference between the second one and the third one. 

How did you decide on the second one to the exclusion of the third one?

yacoub1993 · Answer

i just imagine that the second is correct

directrix · Answer

Look at the third one. Does it appear to you that the center is *not* (1,5)? It looks off to me but these graphs remind me of eye tests.

yacoub1993 · Answer

the second one is centered to 1,5

yacoub1993 · Answer

lol

directrix · Answer

Where is the third one centered?

yacoub1993 · Answer

ok let me have a look at it

yacoub1993 · Answer

the third one is centered to (-1,5)

directrix · Answer

It appears that you are correct in choosing the second option. Okay, I agree with you.

yacoub1993 · Answer

thnxs

directrix · Answer

You are welcome.