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The equation for a circle is a function in that it can be graphed and charted. One common equation is x^2 + y^2 = r^2.

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Q: Is the equation for a circle a function?
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Related questions

What is an None example of function?

Restate question: What is an example of a non-function? The equation of a circle is x2 + y2 = r2. Since a function can only be intersected once by a vertical line, the circle is not a function (almost any vertical line through the circle will cut it twice). If you solve the equation for y, you must write: y = +/- sqrt(r2-x2), so for each value of x there are TWO values of y.


What is the period of a circle?

The period of a circle is not typically a relevant term used to describe circles. However, if you mean the period of a function that describes points along the circumference of a circle, it would depend on the specific function being used.


Is the radius of a circle a function of its area?

You can certainly express the radius as a function of its area, yes. If the area is known, you can solve the formula for the area of the circle to uniquely get the radius. (The quadratic equation has two solutions; you will of course choose the positive solution for the radius.)


Is a circle graph a function?

No, a circle graph is never a function.


Does a circle represent a function in linear functions?

a) A circle is not the graph of a function. b) A circle is not linear.


Is x2 plus y2 equals 4 a function?

No. By definition, a function has a single unique value for every value passed into it. The equation given here describes a circle, which can not be rearranged to meet this condition.


If a circle is centered at the origin and the length of its radius is 6 What is the circle's equation?

The general equation of a circle is given by the formula(x - h)2 + (x - k)2 = r2, where (h, k) is the center of the circle, and r its radius.Since the center of the circle is (0, 0), the equation reduces tox2 + y2 = r2So that the equation of our circle is x2 + y2 = 36.


Is this equation a function y equals 3squared plus 2x minus 3 is this a function?

You can tell if an equation is a function if for any x value that you put into the function, you get only one y value. The equation you asked about is the equation of a line. It is a function.


What is the equation for the radius of a circle?

The radius of a circle = the diameter of the circle divided by 2


When you make the circle smaller which number in the standard equation for a circle centered at the origin decreases?

The radius of the circle decreases when you make the circle smaller.


What is the equation for a circle with a center of (0 0) and a radius of 9?

The equation of the circle is: x^2 + y^2 = 81


Is a circle a function?

The shape of a circle IS capable of being described by an algebraic function. so no