### Functions (introduction)

Many of the things that happen around us are related to mathematics and if we look closely, we can see that nature itself ...

### The method of least squares

When several people measure the same amount, they generally don't get the same results. In fact, if the same person measures the same quantity several ...

### Graphing logarithmic functions

When we talk about the logarithm function, we are also referring to the inverse function of the exponential, since the domain of the exponential function is ...

### Graph of the exponential function

When working with functions, which involve the enhancement operation or a variable like power, they are called exponential functions. Exponential functions ...

### Exponential decay

In the different areas of practical knowledge, such as biology, economics, chemistry, physics and the social sciences, we find examples of ...

### Cramer's method for linear equations

This method consists of looking for the solution values to a system of equations by means of the determinant of a matrix. It is also called ...

### Solving equations with decimals | MyProfe.com

An equation is a mathematical equality between two algebraic expressions, called members, in which known and unknown elements (called variables) appear. A solution...

### Linear equation with fractions

A linear equation is a mathematical equality between two algebraic expressions, called members, in which known and unknown elements (called variables) appear, and ...

### Linear equation with two variables

A linear equation with two variables can be written as follows: ax + by = c Where, x and y are two variables a ...

### Standard form of a linear function

The standard form of a linear function is the equation of the line: y = mx + b Where, m is the slope of the line ...