While the vertex, or standard form of the equation of a circle is expressed in this form: $$(x - h)^2 + (y - k)^2 = r^2 \\ $$ Answer and Explanation:1 We're asked to determine the center and radius of the circle whose equation is {eq}x^2 + y^2 + 4...
Center and Radius of a CircleA circle is a flat geometry with a uniform rounded periphery. The periphery is known as the circumference of the circle. Each point on the circumference of a circle is equidistance from a fixed point called the center. And the distance ...
Alternatively, you can also find the radius by taking the square root of c in the rewritten form of the equation. Since you have two different equations representing two different circles, you will need to repeat this process for each equation to find the center and radius...
rbe the radius of the circle. Answer and Explanation:1 The given equation of a circle is: x2+y2=9 The standard form of the equation of the circle is presented by: {eq}(x-h)^2+(y-k)^2=r^... Learn more about this topic: ...
Determine the center and the radius ofthe circle that is defined by each of thefollowing equations. Then graph eachcircle on a coordinate plane (or useGeoGebra to graph each). Answer thequestions that follow.2. (x-5)^2+(y-6)^2=81 ...
The equation of a circle is given below.Identify the radius and center.Then graph the circle.(x+3)2+(y-1)2=9Radius:口后唱Center:CD×5? 相关知识点: 试题来源: 解析 (+3)2y-1)2=-|||-(x-h24(0H)2=2-|||-ChL)-|||-vodivs=Y-|||-center(-3,1)-|||-2=-|||-Y=3-|||...
Which function represents the upper half of the circle? A. y = √(25 - x^2) B. y = -√(25 - x^2) C. y = 5 - x D. y = x - 5 相关知识点: 试题来源: 解析 A。解析:对于圆的方程 x^2 + y^2 = 25,上半圆的函数表达式为 y = √(25 - x^2),所以选 A。
In a circle with a radius R, since the arc length of the 360° center angle is equal to the circumference length \(C=2πR\), the arc length of the n° center angle is \(l=( n°πR)/180°\) In the arc system, if the central angle of the arc is θ, then there is a for...
百度试题 结果1 题目Write an equation of circle R based on the given information.center: R(1, 2)radius: 7 相关知识点: 试题来源: 解析 (x-1)^2+(y-2)^2=49 反馈 收藏
百度试题 结果1 题目Identify the center and radius of the circle and sketch the circle. (x-2)^2+(y-3)^2=4 相关知识点: 试题来源: 解析 Center: (2,3); r=2反馈 收藏