Circles and Equations
By Walter Kissach
Open iTunes to buy and download apps.
Circles and Equations is a powerful learning aid that combines interactive Coaching Calculators and Guides to help students master finding the center and radius of a circle by completing the square.
Work with the Coaching Calculator to find the centre and radius of a circle step by step,
- Taking constant term to right hand side
- Grouping x-related and y-related terms
- Completing the squares
- Writing in center-radius form
or go straight to a particular step.
The Guide features worked examples with circle equations where the coefficient of x² is one and not equal to one.
Applications include finding the equation of a tangent line at a a given point on a circle and determining if a given point is inside a circle.
It's ideal for students as the menu design reinforces each problem solving step and examples highlight and simplify algebra that students find hard.
What's New in Version 6.0
iOS 10 compatibility and bug fixes.
- USD 0.99
- Category: Education
- Updated: 16 September 2016
- Version: 6.0
- Size: 1.7 MB
- Language: English
- Developer: Walter Kissach
- © 2013 Walter Kissach
Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.