Respuesta :

Lanuel

Based on the given figure, the table should be completed to derive the equation of a circle in standard form as follows:

Statements                                      Reasons______________

DE = y - k                                         From figure.

EC = x - h                                         From figure

DC² = DE² + EC²                              Pythagorean theorem

(x - h)² + (y - k)² = r²                          Pythagorean theorem

What is a circle?

A circle can be defined as a closed, two-dimensional curved geometric shape with no edges or corners. Also, a circle refers to the set of all points in a plane that are located at a fixed distance (radius) from a fixed point (central axis).

The equation of a circle.

Mathematically, the standard form of the equation of a circle is given by;

(x - h)² + (y - k)² = r²

Where:

  • h and k represents the coordinates at the center.
  • r represents the radius of a circle.

Statements                                      Reasons______________

1. DJ ⊥ x-axis                                    By construction

2. CE ⊥ DJ                                        By construction__________

3. DJ = y                                            From figure

4. EJ = k                                             From figure

5. DE = DJ - EJ                                  From figure

6. DE = y - k                                       From figure_____________

7. EL ⊥ y-axis                                    By construction__________

8. EL = x                                             From figure

9. CL = h                                            From figure

10. EC = EL - CL                                 From figure

11. EC = x - h                                       From figure_____________

12. ΔDEC is a right triangle               m∠DEC = 90°

13. DC² = DE² + EC²                           Pythagorean theorem

14. (x - h)² + (y - k)² = r²                       Pythagorean theorem

Read more on circle coordinates here: brainly.com/question/1615837

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