kieijadixon kieijadixon
  • 12-07-2016
  • Mathematics
contestada

What is the standard form of the equation of a circle with its center at (2, -3) and passing through the point (-2, 0)?

Respuesta :

dalendrk
dalendrk dalendrk
  • 12-07-2016
[tex](a;\ b)-the\ coordinates\ of\ center\\r-the\ radius\\\\The\ equation\ of\ the\ circle:(x-a)^2+(y-b)^2=r^2\\\\The\ radius\ is\ equal\ the\ distance\ between\ points\ (2;-3)\ and\ (-2;\ 0)\\\\The\ distance\ between\ A(x_A;\ y_A)\ and\ B(x_B;\ y_B):\\d=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}\\\\subtitute:\\r=\sqrt{(-2-2)^2+(0-(-3))^2}=\sqrt{(-4)^2+3^2}=\sqrt{16+9}\\=\sqrt{25}=5\\\\\boxed{(x-2)^2+(y-(-3))^2=5^2\to(x-2)^2+(y+3)^2=25}[/tex]
Answer Link

Otras preguntas

Symbolism is defined as the A. use of objects or images to represent abstract ideas or universal truths. B. repetition of words or ideas to create or develop a
what is a isotope and how are isotopes of the same element different?
What term describes an educated guess about what the answers to a question might be
did joliet explore the St.Lawerence river for france
What is predestination? A. the idea that the divine right of kings is based upon B. the idea that humans are given free will to determine their fate in advance
The foundation of any short story's plot is _____.
A restricted thesis statement should ?
What's the simplest form for 4/24
The concept of Limbo came about during the medieval era to address major theological concerns
20 divided by 2 (5 5)=