The equation (x + 4)2 + (y – 9)2 = 144 models the position and range of a cellular phone tower. what is the position of the tower on a coordinate plane?

(-4,9)

Step-by-step explanation:

The given equation models the position and range of a cellular phone tower :

Since the radiation of a phone tower radiates in a circular area where the position of the tower is the center of that circle.

The standard equation of a circle is given by :-

, here (h,k) is the center of the circle.

Now, comparing to  the standard equation of the circle, the position of tower on the coordinate plane = (-4,9).

the answer is d

step-by-step explanation:

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