Showing posts with label Linear Equations. Show all posts
Showing posts with label Linear Equations. Show all posts

Monday, December 10

Classifying Equations Math

Introduction to classifying equations math:

An equation is nothing but the mathematical statement, which asserts the equality of two expression. The equations forms the backbone of mathematics. Classifying the equations will helps to know the types of equations. In this article classifying equations math,  we are going to discuss about classifying the math equations.

Classifying Equations Math
Mathematics equations are classified into many types.  Those classifying equations are as follows:

Linear equations

Quadratic equations

Exponential equation

Cubic equation

Quartic equation

Constant equation

Explanation on Classifying the Equations:

Linear equations:

Linear equation is nothing but an algebraic equation. It has one or more variable. Each term of linear equation is either constant or multiplication of that constant.

Standard form of linear equation is y=ax +b

Quadratic equations:

Quadratic equation is second degree of expression or polynomial equation in algebra. The standard form of quadratic equation is . Please express your views of this topic how to graph linear equations by commenting on blog

ax2+bx+c=0

Here x is variable of the equations and a,b,c are constant of the equation must a?0.When a=0 it was called as linear.

Exponential equation:

Exponential function was can written as like ex, here e in constant number its approximate value is 2.7.This function was mainly used to change constant value in the independent variable, it gives same values of the  dependent  variable.

It can written as like y= ax^b

Cubic equation:

Cubic equation is third degree of expression or polynomial equation in algebra. The standard form of quadratic equation is

ax3+bx2+cx+d=0

Here x is variable of the equations and a, b, c ,d are constant of the equation.

Quartic equation:

Quartic equation is fourth degree of expression or polynomial equation in algebra. The standard form of quadratic equation is

Ax4+bx3+cx2+dx+e=0

Here x is variable of the equations and a, b, c ,d ,e are constant of the equation.

Constant equation:

Constant equation is nothing but having number alone. It can be written as X=8

Sunday, August 16

How to solve a linear equation

Topic : linear equation

When you enter an problem or equation into the calculator, the calculator will get the answer by simplifying the problem whether it is numerical or algebraic expression. Then it will attempt to solve the equation by using one or more of the the following : addition, subtraction, division, or by taking the square root of each side,factoring , and completing the square
This can be done with help of algebra calculator online two variables

Here are some example:

Question: Find X for the following 1.)-4 = 5 - 3x
Answer:

- 4 = 5 - 3x
5 - 3x = - 4
- 3x = - 4 -5
- 3x = - 9
x = 3

2.) -2x -3 = 7

Answer:

- 2x - 3 = 7
- 2x = 7 + 3
- 2x = 10
x = - 5

Wednesday, March 18

Linear Equation with Rational co-efficients

Topic : Linear Equations

Question : Solve the system of linear equations.
(2/3) x + (4/5) y = 8
(5/4) x - (3/2) y = - 6

Solution :
(2/3) x + (4/5) y = 8 ------------- (1)
(5/4) x - (3/2) y = - 6 ------------- (2)

To eliminate fractions let us multiply whole equation (1) by 15 and equation (2) by 8
15 *(2/3) x + 15*(4/5) y = 15*8
10x +12y = 120
dividing by 2
5x+6y=60

8*(5/4) x - 8*(3/2) y = - 6*8
10x-12y=-48
divide by 2
5x-6y= -24

So the two equations are
5x+6y=60
5x-6y= -24

adding both the equations
10x = 36
x = 36/10
x=3.6
substituting the value of x in first equation
5x+6y=60
5(3.6)+6y=60
18.0+6y=60
6y=-18.0+60
6y= 42
y = 42/6
y=7