High School

Polynomials—a general term for a mathematical expression with terms joined by plus or minus signs—can be written in multiple ways. Two ways of writing a polynomial can be found by expanding and...

Center of a circle... and its radius. A circle is a locus or set of points equally distant from a point. That point is the center of the circle and the distance is called the radius. Since the...

A frequent math question involves generating the equation of a line that passes through a point and is parallel to a given line. This tutorial can help you master a common algebra / geometry...

Textbook algebra teaches you how to work with variables. Algebra is essential for many careers such as architecture, engineering, nursing and accounting. Textbook algebra covers polynomials,...

Derivatives and Integrals are integral in the fields of mathematics and science, used to find the relations between variables such as distance, velocity, and acceleration. This article will teach...

Find the y-intercept of a line from it’s equation in just two easy steps. This free math help will literally allow you to read the slope from the equation, and as a bonus, will allow you to read...

A chemical formula is a simplified, standard notation for explaining a chemical reaction used in experiments. They may look complicated, but when you learn how to read them, they become fairly...

Algebra 2 can be tedious if one doesn't have a broad perspective on why manipulations are being done, or a grasp of the underlying principals behind why some manipulations are allowed and others...

Algebra 1 may seem daunting to students, but there are tips and simple formulas to memorize that make solving algebra problems much easier. They are necessary to learn but easy to apply.

Solving algebraic word problems is the backbone of physical science as well as an important component of high school and college math. To complete these problems you must be able to translate...

The discriminant, b²-4ac, is the expression that is underneath the radical sign in the quadratic formula. Calculating the discriminant is useful because it can tell you what types of roots a...

Writing your own linear equation word problems for your students can make the math assignment not only more fun for the kids, but can make it more relevant. In writing your own problems, you can...

Algebraic equations are simple to solve--or calculate for the variable (usually x). An equation represents a mathematical phrase of operations acting on x--those operations generally being...

Linear equations are given in the form y = ax + b with known coefficients a and b. Linear equation graphs are straight lines having two characteristics. One of them is the plot slope that is...

The Internet is a valuable resource for learning most anything, and free algebra help is no exception. There are a lot of resources available in the form of tutorials, videos, interactive...

You might think you can’t do much with two points plotted on the xy-plane. However, the opposite is true. If you are given that these two points are endpoints of a circle’s diameter, you can...

Algebraic linear equations are mathematical functions that, when graphed on a Cartesian coordinate plane, produce x and y values in the pattern of a straight line. The standard form of the linear...

Polynomials are a set of equations that exhibit predictable mathematical behaviors that can be used to investigate them algebraically and graphically. Polynomials are used in almost every area of...

For someone new to algebra, finding the vertex of a parabola equation can be very difficult. The vertex is the maximum or minimum point of a parabola defined by a quadratic equation. There are two...

The ideal gas law. A great equation derived from the usage of moles, pressure, volume, and temperature of a gas. This equation can be used in lower level chemistry, all the way up to college level...

To calculate the slope of a curve, you need to calculate the derivative of the curve's function. The derivative is the equation of the slope of the line tangent to the point on the curve whose...

Fractional exponents can seem to be a complicated task in math, but once they are taken apart and approached piece by piece, they are easier than they first appear. You need to take them one rule...

Algebraic equations can seem confusing because they use not only numbers, but letters, as well. Once you break them down, however, they can be solved in a few steps. Learn how to evaluate a math...

A function is a special mathematical relationship between two sets of data, where no member of the first set is directly related to more than one member of the second set. The easiest example to...

A quadratic equation is a polynomial equation of the second degree. It is in the form ax squared+bx+c=0, where a, b, and c are real numbers. It can be solved by factoring, completing the square,...

This article will tell you all the relevant information you need to know about linear equations in one variable.

Algebra can be difficult for some students to tackle. The tips provided here will make learning algebra a little easier. From the history of algebra to ways of remembering steps to solving an...

To solve a linear function, which usually means solving for Y, isolate Y on one side of the equation by moving the other terms to the opposite side and simplify the equation until Y is solved....

Means and extremes in algebra refer to ratios and proportions, with the mean being the middle numbers and the extreme being the outside numbers of the equation. Find out how to determine the means...

Factoring a parabola requires creating polynomials in the equation if there are none. Factor out a parabola to get the vertex value with instructions from a college-level math teacher in this free...

This Article will show how to Sketch the graph of Logarithmic Function by using only three Points Derived from the Equation/Function itself, also it will show how the Graphs Vertically Translates...

Boolean algebra is a way of expressing logic using mathematical notation. Boolean equations can be very complicated, but there are a number of ways to simplify the Boolean functions so that you...

While it may not seem relevant at the moment, knowing how to divide fractions will help you greatly when you move on to more advanced math classes.You will need to divide fractions anywhere from...

A hyperbola is a type of conic section formed when both halves of a circular conical surface are sliced by a plane. The common set of points for these two geometric figures form a set. The set is...

The mathematical definition of a cylinder is a figure which has two circular bases which are congruent and parallel to each other.

When it comes to mathematical equations, many people are downright scared. It's easy to understand, as teachers are not always able to adequately explain the various techniques of math and how to...

Math can be a tricky subject for people, especially when in comes to advanced types of math such as algebra. One tough equation to solve is an equation with like terms, which are terms that...

Solving math equations can be confusing if you do not know there is an order to complete them in, called a sequence. Following the simple rules of math sequences will help you to be able to...

In trigonometry, the use of the rectangular (Cartesian) coordinate system is very common when graphing functions or systems of equations. However, under certain conditions, it is more useful to...

Often math problems will initially present themselves as word problems, in school and in dealing with real world problems. In these situations an equation often has to be written out to represent...

The quadratic formula is a recipe for the roots of a quadratic equation. The roots describe if and where the curve becomes zero.

"Like terms" in algebraic equations are those that contain the same variable. We will take the equation "2x+9+5x=44" to analyze the use of like terms below. In this example equation, the 2x and 5x...

Many mixture word problems involve combining two or more items and then determining either the percentage or the price of the resulting mixture. To solve mixture word problems, you need to find...

You factorise the quadratic expression x²+ (a+b) x +ab by rewriting it as the product of two binomials (x+a) X (x+b). By letting (a+b)=c and (ab)=d, you can recognize the familiar form of the...

Some mathematical operations have an inverse. Squaring a number means to multiply the number by itself. The inverse of squaring a number is to find the square root of it. The symbol and terms...

When you are unable to solve a quadratic equation of the form ax² +bx+c by factoring, then you can use the technique called completing the square. To complete the square means to create a...

In algebra, one of the most important things you will learn is how to find the the zeros of a polynomial function. Unfortunately it is often difficult to find these zeros, and sometimes it's...

One of the hardest topics in high school chemistry is how to balance redox reactions, formally oxidation reduction reactions. The procedure to balance these types of reactions is simple if you can...