Using the Discriminant The discriminant of a quadratic equation , is . The discriminant is found inside the square root of the quadratic formula. The discriminant tells us the number and nature of the roots of the quadratic. If the discriminant is: Number and Nature number of x-intercepts of the graph of the related function Positive two real roots

This list was not organized by years of schooling but thematically. Just choose one of the topics and you will be able to view the formulas related to this subject. This is not an exhaustive list, ie it's not here all math formulas that are used in mathematics class, only those that were considered most important.

To solve quadratic equations, substitute the coefficients a, b and c into the quadratic formula. The expression b 2 - 4ac shown under the square root sign is called the discriminant , because it can "discriminate" between the all possible types of answer: Discriminant Test (Quadratics) This video covers the Discriminant Test, an important concept when working with Quadratic functions. Questions involving applying the Discriminant Test are sometimes found in IB Maths HL exam papers, most commonly in Paper 1. This video is accompanied by two IB exam style question to further practice your knowledge. IB Maths SL – Formula Sheet ~ Revision Village ~ Topic 1: Algebra The nth term of an arithmetic sequence 𝑛= 1+(𝑛−1) Sum of an arithmetic sequence 𝑛= Review of the Quadratic Formulas and Discriminant A quadratic equation in one variable is an equation that may be written in the form a x 2 + b x + c = 0 where a, b and c are constants with a not equal to zero. There are several methods to solve quadratic equations. In this tutorial we use the the quadratic formulas and the discriminant. Review of the Quadratic Formulas and Discriminant A quadratic equation in one variable is an equation that may be written in the form a x 2 + b x + c = 0 where a, b and c are constants with a not equal to zero. There are several methods to solve quadratic equations. In this tutorial we use the the quadratic formulas and the discriminant.

Enjoy these free sheets. Each one has model problems worked out step by step, practice problems, as well as challenge questions at the sheets end. Plus each one comes with an answer key. Solve Quadratic Equations by Factoring; Solve Quadratic Equations by completing the square; Quadratic Formula Worksheets. Quadratic formula Worksheet (real ...