Types of Equation

A variable in mathematics is a symbol that is used in place of a value. The value of a variable depends on the other values in the expression or equation. As a result, the variable can at times change accordingly. Variables can be letters, Greek symbols or combinations of many other symbols.

Linear equations in one variable can be represented in generalized form as "ax = b". Read here to know about Linear Equations with Two Variables

Otherwise it is independent. A linear equation in three variables describes a plane and is an equation equivalent to the equation. where A, B, C, and D are real numbers and A, B, C, and D are not all 0.

In mathematics, an exponential function is a function of the form f ( x ) = b x {\displaystyle f(x)=b^{x}\,} in which the input variable x occurs as an exponent.

Linear Equations. A linear equation is an equation for a straight line. ... Using Linear Equations. You may like to read some of the things you can do with lines:

Linear Equations. A linear equation is an equation for a straight line. ... Using Linear Equations. You may like to read some of the things you can do with lines:

1. To solve a logarithmic equation, rewrite the equation in exponential form and solve for the variable. Example 1: Solve for x in the equation Ln(x)=8. Solution: Step 1: Let both sides be exponents of the base e. The equation Ln(x)=8 can be rewritten .

In mathematics, a polynomial is an expression consisting of variables (also called indeterminates) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables. An example of a polynomial of a single indeterminate x is x2 − 4x + 7.

Power (physics) In physics, power is the rate of doing work per unit time. It is the amount of energy consumed per unit time. Having no direction, it is a scalar quantity. In the SI system, the unit of power is the joule per second (J/s), known as the watt in honour of James Watt, the eighteenth-century developer of the steam engine.

Or we can use the special Quadratic Formula: Just plug in the values of a, b and c, and do the calculations. We will look at this method in more detail now.

Quadratic Equations. An example of a Quadratic Equation:. Quadratic Equations make nice curves, like this one: Name

Solving Radical Equations. How to solve equations with square roots, cube roots, etc. Radical Equations : A Radical Equation is an equation with a square root or cube root, etc. Solving Radical Equations. We can get rid of a square root by squaring. (Or cube roots by cubing, etc) But Warning: this can sometimes create "solutions" which don't actually work when we put them into the original ...

Purplemath. While adding and subtracting rational expressions can be a royal pain, solving rational equations is generally simpler, even if rational expressions are added within those equations.

Sal finds the equation of a sinusoidal function from its graph where the minimum point (-2,-5) and the maximum point (2,1) are highlighted. Created by Sal Khan.

General Form of Equation of a Line. The "General Form" of the equation of a straight line is: Ax + By + C = 0. A or B can be zero, but not both at the same time. The General Form is not always the most useful form, and you may prefer to use: The Slope-Intercept Form of the equation of a straight line: