# Functions In this topic, we will look at

• Composite and Inverse Functions
• Quadratic Functions and the Discriminant
• Rational Functions
• Transforming Functions
• The Factor and Remainder Theorem
• Sums and Products of Polynomial Equations

• On this page we will look at quadratic expressions and how the different factorised forms link to the shape of the graph. We will also get an understanding about how the discriminant affects not only the number of roots of a quadratic equation, but also ho

• ### Transforming Functions HL

For the topic of transforming functions, we need to understand the effect of translating, reflecting and stretching has on functions. You may be asked to describe the transformations, sketch graphs or find the coordinates of points that have been transform

• ### Transforming Functions SL

For the topic of transforming functions, we need to understand the effect of translating, reflecting and stretching has on functions. You may be asked to describe the transformations, sketch graphs or find the coordinates of points that have been transform

• ### Factor and Remainder Theorem

The factor theorem is a special case of the remainder theorem, in that (x-a) is a factor if and only if P(a)=0

• ### Sums and Products of Roots

On this page, we learn all about roots of polynomial equations and how to use the formulae for the sum of the roots and the product of the roots.