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Sets Overview

A set is essentially a collection of items, where each item is considered an element. Elements are listed inside of brackets, and as a collection, they make up a set. Sets are usually named using a capital letter. For example, states that set consists of the elements and . You know that a number is … Read more

Circle Equations Overview

A circle is the set of all points on a plane that are equidistant from a center point. The radius of a circle is a line segment that has its endpoints on the center and any point on the circumference of the circle. Take a look at this circle on the coordinate plane: The circle … Read more

Praxis Elementary Education: Curriculum, Instruction, and Assessment (5017) Practice Test

The Praxis Elementary Education Curriculum, Instruction, and Assessment exam is designed to measure the knowledge and skills that are essential for teachers of children in elementary schools. Click “Start Test” above to take a free Praxis Elementary Education Curriculum, Instruction, and Assessment practice test, and check out our premium-quality Praxis test prep resources by clicking … Read more

Algebra I

Mometrix’s Algebra I videos are general reviews of the concepts, ideas, and topics that may be presented on an exam. Each of these videos will give a wide-scope review of what a test taker may need to know as they prepare to take a test. Algebra 1 Online Prep Course If you want to be … Read more

Consecutive Interior Angles Overview

At first, the term “consecutive interior angles” may seem intimidating. However, try breaking it down word-by-word: To be consecutive means to ‘sit’ next to each other (or follow one another). Something that is interior is contained in between other things. An angle is a space measured between two intersecting lines. Consecutive Interior Angles Sample Questions … Read more

PTCB Study Guide

Earn your Pharmacy Tech Certification Quickly With Our PTCB Study Guide Pass Your Test The First Time You’re ready to add CPhT to your title. Our study guide makes the most use of your limited time. Buy Printed Book($32.99)Buy eBook($27.99) PTCB Exam Prep 2025-2026 Study Guide – PTCB Secrets Review Book [8th Edition] 2025-02-01 2025 … Read more

One-to-One Functions Overview

What is a One-to-One Function? We say that a function is one-to-one if for all -values, there are unique y-values, or equivalently, there are unique -values. An easy way to visualize this concept is in the case of continuous functions, where they must be strictly increasing or strictly decreasing to be considered one-to-one. One-to-One Sample … Read more

Multiplying and Dividing Signed Numbers Overview

When multiplying and dividing signed numbers, we start by applying the operation to the absolute value of both numbers. If the two numbers have the same sign, the answer will be positive, if the two numbers have different signs, the answer will be negative. Signed Numbers Sample Questions The following rules show that when the … Read more