Terms and Conditions
WHY. We are a small, independent publisher founded by a math teacher and his wife. We believe in the value we bring to teachers and schools, and we want to keep doing it. We keep our prices low so all teachers and schools can benefit from our products and services. We ask that you help us in our mission by complying with these Terms & Conditions.
PLEASE, NO SHARING.We know it’s nice to share, but please don’t share your subscriber content or your login or validation info. Your subscription is a Single User License, which means it gives one person – you -- the right to access the subscriber content (Answer Keys, editable lesson files, pdfs, etc.) but is not meant to be shared.
- Please do not copy or share the Answer Keys or other subscriber content.
- Please do not post the Answer Keys or other subscriber content on a website for others to view. This includes school websites and teacher pages on school websites.
- You can make copies of the Answer Keys to hand out to your class, but please collect them when the students are finished with them.
- If you are a school, please purchase a license for each teacher/user.
PLEASE RESPECT OUR COPYRIGHT AND TRADE SECRETS. We own the copyright in all the materials we create, and we license certain copyrights in software we use to run our site, manage credentials and create our materials; some of this copyrighted software may be embedded in the materials you download. When you subscribe, we give you permission (a “Single User License”) to use our copyrights and trade secrets and those we license from others, according to our Terms & Conditions. So in addition to agreeing not to copy or share, we ask you:
- Please don’t reverse-engineer the software; and please don’t change or delete any authorship, version, property or other metadata.
- Please don’t try to hack our validation system, or ask anyone else to try to get around it.
- Please don’t put the software, your login information or any of our materials on a network where people other than you can access it
- Please don’t copy or modify the software or subscriber content in any way unless you have purchased editable files;
- If you create a modified assignment using a purchased editable file, please credit us as follows on all assignment and answer key pages:
“This assignment is a teacher-modified version of [eMath Title] Copyright © 201x eMath Instruction, LLC, used by permission”
FEEDBACK REQUESTED. We value your feedback about our products and services. We think others will value it, too. That’s why we may do the following (and we ask that you agree):
- Use your feedback to make improvements to our products and services and even launch new products and services, with the understanding that you will not be paid or own any part of the new or improved products and services (unless we otherwise agree in writing ahead of time).
- Share your feedback, including testimonials, on our website or other advertising and promotional materials, with the understanding that you will not be paid or own any part of the advertising or promotional materials (unless we otherwise agree in writing ahead of time).
SATISFACTION GUARANTEED. If you are not 100% satisfied, we will refund you the purchase price you paid within 30 days. To get a refund:
- Within 30 days of your purchase,
- Delete the software and all subscriber content from all your computers, destroy all photocopies or printouts of our materials and return all tangible copies (disks, workbooks, etc) and other materials you have received from us to:
eMath Instruction Returns Department
10 Fruit Bud Lane
Red Hook, NY 12571
TECHNICAL SUPPORT: If you are having trouble logging in or accessing your materials, or if your downloaded materials won’t open or are illegible, please notify us immediately by email at email@example.com so we can get it fixed.
NO WARRANTY. We believe in the quality and value of our products and services, and we work hard to make sure they work well and are free of bugs. But that said, we are providing our products and services to you “as is,” which means we are not responsible if something bad happens to you or your computer system as a result of using our products and services. For our full Disclaimer of Warranties, please see our Legalese version of these Terms & Conditions Here.
DISPUTES. If we have a dispute that we cannot resolve on our own, we will use Binding Arbitration instead of filing a lawsuit in a regular court (except that you can use small claims court). Binding Arbitration means our case will be decided by one or more arbitrators who are chosen and paid by all parties to the dispute. Arbitration is a faster and less formal way of resolving disputes and therefore tends to cost less.
- To begin an arbitration proceeding, please send a letter requesting arbitration and describing your claim to:
eMath Instruction, Inc.
10 Fruit Bud Lane
Red Hook, NY 12571
LIMITATION OF LIABILITY. If you do win a case against us, the most you can recover from us is the amount you have paid us.
To see the Legalese version of our Terms & Conditions, please click HERE. We’ve given you the highlights above, in plain English, but it’s a good idea to look at the Legalese, too, because by checking the box below and proceeding with your purchase you are agreeing to both the English and Legalese.
Standards in this domain:
Understand solving equations as a process of reasoning and explain the reasoning.
Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.
Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise.
Solve equations and inequalities in one variable.
Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.
Solve quadratic equations in one variable.
Use the method of completing the square to transform any quadratic equation in x into an equation of the form (x - p)2 = q that has the same solutions. Derive the quadratic formula from this form.
Solve quadratic equations by inspection (e.g., for x2 = 49), taking square roots, completing the square, the quadratic formula and factoring, as appropriate to the initial form of the equation. Recognize when the quadratic formula gives complex solutions and write them as a ± bi for real numbers a and b.
Solve systems of equations.
Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.
Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables.
Solve a simple system consisting of a linear equation and a quadratic equation in two variables algebraically and graphically. For example, find the points of intersection between the line y = -3x and the circle x2 + y2 = 3.
(+) Represent a system of linear equations as a single matrix equation in a vector variable.
(+) Find the inverse of a matrix if it exists and use it to solve systems of linear equations (using technology for matrices of dimension 3 × 3 or greater).
Represent and solve equations and inequalities graphically.
Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line).
Explain why the x-coordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately, e.g., using technology to graph the functions, make tables of values, or find successive approximations. Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions.*
Graph the solutions to a linear inequality in two variables as a half-plane (excluding the boundary in the case of a strict inequality), and graph the solution set to a system of linear inequalities in two variables as the intersection of the corresponding half-planes.