Finding the Centre of a Circle Passing Through Given Points (1,-2) and (4,-3)

  • Thread starter Thread starter zorro
  • Start date Start date
  • Tags Tags
    Circle
Click For Summary
SUMMARY

The discussion focuses on finding the center of a circle that passes through the points (1,-2) and (4,-3), with the center constrained to lie on the line defined by the equation 3x + 4y = 7. The user initially derived the equation 3x - 2y = 10 using the distance formula but later recognized an error in their calculations. The correct second equation should be 3x - y = 10, leading to the accurate center of the circle at the point (3, -1/2).

PREREQUISITES
  • Understanding of the distance formula in coordinate geometry
  • Knowledge of linear equations and how to solve them
  • Familiarity with the concept of a circle in a Cartesian plane
  • Ability to manipulate and simplify algebraic equations
NEXT STEPS
  • Review the distance formula in coordinate geometry
  • Practice solving systems of linear equations
  • Explore the properties of circles in a Cartesian coordinate system
  • Learn about geometric interpretations of algebraic equations
USEFUL FOR

Students studying geometry, mathematics educators, and anyone interested in solving problems related to circles and coordinate systems.

zorro
Messages
1,378
Reaction score
0

Homework Statement


Find the centre of the circle which passes through the points (1,-2) and (4,-3) whose centre lies on the line 3x + 4y = 7


Homework Equations





The Attempt at a Solution



distance from the centre of the circle to the given points is equal
by distance formula and simplifying,
I got 3x-2y=10

On Solving 3x + 4y= 7 and 3x - 2y= 10
I got the point (3,-1/2) as the centre of the circle.
But answer is something else.
Please help
 
Physics news on Phys.org
I get as a second equation
[tex]3x -y=10[/tex]
 
Damn! such a silly mistake
Thanks mate.
 

Similar threads

  • · Replies 48 ·
2
Replies
48
Views
6K
Replies
6
Views
2K
  • · Replies 2 ·
Replies
2
Views
4K
  • · Replies 11 ·
Replies
11
Views
3K
Replies
8
Views
3K
Replies
5
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K
Replies
8
Views
3K
Replies
2
Views
2K
Replies
6
Views
4K