Convert the cartesian equation x2 +y2=16 to a polar equation

1 answer:

3 0

X^2+y^2 = 16
can be written as
(x-0)^2+(y-0)^2 = 4^2

We see that the second equation is in the form
(x-h)^2 + (y-k)^2 = r^2

where
(h,k) = (0,0) is the center
r = 4 is the radius

The polar form of the equation is simply r = 4. Why is this? Because the radius is fixed to be 4 no matter what happens with theta. As theta goes from 0 to 360, the points generated all form a circle centered at (0,0) with radius 4.

Answer: r = 4

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What is the equation of the directrix of a parabola defined by the equation y = x2 − 2x − 3?

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Answer:

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Step-by-step explanation:

The question in English is

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we know that

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