Choose the appropriate chapter from the list:

Chapter - Linear Functions and Lines
Distance formula, mid point, equation of a line, gradient known, equation of a line given 2 points, gradient of a line, and points of intersection

Chapter - Quadratic Polynomial and Parabola
Definition of quadratic polynomial and parabola, discriminant, fitting a parabola, identities, quadratic formula, and sum of product of roots

Chapter - Real Function of a Real Variable
Functions, relations between two variables, simultaneous inequalitie, and single inequality