The zero point deals with functions and their properties and progressions. The zero is the xvalue that is inserted into a function and returns the function value "zero". The number of zeros always depends on the function f.
There aredifferent methods for calculating the zeros, which always depend on the function f. The following calculation methods contain both an explanation and at least one example.
The zero of a linear function
Linear functions are constructed as follows: y = mx a
Examples:
f(x) = y = 3x 9
(x) = y = 51x 46
To calculate the zero, set the function f(x) = 0. Following this method gives the following results for the zeros:
0= 3x 9   9
9 = 3x  : 3
3 = x
= 51x 46   46
46 = 51x  : 51
0.90 = x
The zero of a quadratic function
Quadratic equations such as ^{x2} 2x 1 = 0 are always solved for x, so that the socalled PQ formula
is used.This means that the formula ^{x2} px q = 0 is used for the equation, resulting in the solution with the following formula:
_{x1/2} =  Mathematics
Mathematics
Author: Daniel Herndler
On this website, calculations, formulas and sample calculations with simple explanations are provided online free of charge by the author.
