Circle equations and centres: check 1
Difficulty: ★★☆Info
Maths4U Original · Short practice
A circle has equation \(x^{2} - 40 x + y^{2} - 10 y + 376 = 0\).
Find the centre x-coordinate.
Enter one exact number or fraction. These checks support non-calculator practice. Give full reasoning separately for written problems.
Circle equations and centres: review variant 1
Difficulty: ★★☆Info
Maths4U Original · Short practice
A circle has equation \(x^{2} - 42 x + y^{2} - 4 y + 436 = 0\).
Find the centre x-coordinate.
Enter one exact number or fraction. These checks support non-calculator practice. Give full reasoning separately for written problems.
Circle equations and centres: check 2
Difficulty: ★★☆Info
Maths4U Original · Short practice
A circle has equation \(x^{2} - 42 x + y^{2} - 4 y + 436 = 0\).
Find the centre y-coordinate.
Enter one exact number or fraction. These checks support non-calculator practice. Give full reasoning separately for written problems.
Circle equations and centres: review variant 2
Difficulty: ★★☆Info
Maths4U Original · Short practice
A circle has equation \(x^{2} - 44 x + y^{2} - 6 y + 477 = 0\).
Find the centre y-coordinate.
Enter one exact number or fraction. These checks support non-calculator practice. Give full reasoning separately for written problems.
Circle equations and centres: check 3
Difficulty: ★★☆Info
Maths4U Original · Short practice
A circle has equation \(x^{2} - 44 x + y^{2} - 6 y + 477 = 0\).
Find the squared radius.
Enter one exact number or fraction. These checks support non-calculator practice. Give full reasoning separately for written problems.
Circle equations and centres: review variant 3
Difficulty: ★★☆Info
Maths4U Original · Short practice
A circle has equation \(x^{2} - 46 x + y^{2} - 8 y + 520 = 0\).
Find the squared radius.
Enter one exact number or fraction. These checks support non-calculator practice. Give full reasoning separately for written problems.
Circle equations and centres: check 4
Difficulty: ★★☆Info
Maths4U Original · Short practice
A circle has equation \(x^{2} - 46 x + y^{2} - 8 y + 520 = 0\).
Find the greatest x-coordinate on the circle.
Enter one exact number or fraction. These checks support non-calculator practice. Give full reasoning separately for written problems.
Circle equations and centres: review variant 4
Difficulty: ★★☆Info
Maths4U Original · Short practice
A circle has equation \(x^{2} - 48 x + y^{2} - 10 y + 565 = 0\).
Find the greatest x-coordinate on the circle.
Enter one exact number or fraction. These checks support non-calculator practice. Give full reasoning separately for written problems.