Use the equation x2+9=6x−y2−6y−9x2+9=6x−y2−6y−9 to answer the questions. a: what is the equation in standard form? b: does the given equation represent a circle, a point, or an empty set? select one answer choice for question a, and select one answer choice for question b.

Step-by-step explanation:

A. Rearranging to standard form, you get ...

  x^2 +9 = 6x −y^2 −6y −9

  x^2 -6x +y^2 +6y = -18

  (x^2 -6x +9) +(y^2 +6x +9) = -18 +9 +9

  (x -3)^2 +(y +3)^2 = 0

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B. This represents a circle centered at (3, -3) with radius zero: a point.

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.

answer: what in the world is this

step-by-step explanation: