# How do you do graphical method?

1. Step 1: Formulate the LP (Linear programming) problem.
2. Step 2: Construct a graph and plot the constraint lines.
3. Step 3: Determine the valid side of each constraint line.
4. Step 4: Identify the feasible solution region.
5. Step 5: Plot the objective function on the graph.
6. Step 6: Find the optimum point.

## What is the difference between graphical and analytical method?

The analytical method is more accurate than the graphical method, because the latter involves some extensive calculations. The analytical method is less accurate than the graphical method, because the former includes drawing all figures to the right scale.

## How do you solve forces graphically?

In order to resolve these forces graphically, one must first extend the lines of action of two concurrent forces until they intersect. This intersection is known as the point of origin for the system. Both forces, as well as the resultant, must ALL act either away from or toward the point of origin.

## What is graphical method example?

Graphical Method Examples Example 1: The path of highway number 1 is given by the equation x + y = 7 and the highway number 2 is given by the equation 5x + 2y = 20. Represent these equations geometrically. Plot the points A (1, 6), B(4, 3) and join them to form a line AB. Similarly, plot the points C(2, 5).

## What are the two types of graphical method?

Graphical Representation in Maths There are two types of graphs to visually depict the information. They are: Time Series Graphs – Example: Line Graph. Frequency Distribution Graphs – Example: Frequency Polygon Graph.

## Which graphic method is used to predict the nature of distribution?

Graph the Raw Data The histogram gives us a good overview of the data. At a glance, we can see that these data clearly are not normally distributed.

## Is the graphical method used to measure correlation?

A simple metric for describing bivariate data is to measure the degree of correlation between two random variables,  and . This can be done graphically using scatter plots, or analytically using various formulas. The most common and well-known statistic is Pearson’s correlation coefficient.

## What is analytical method in physics?

What is the Analytical Method? Determining the resultant of two or more non-perpendicular vectors by adding all their x- and y-components. By resolving all non- perpendicular vectors into right angle components, a difficult problem can be transformed into an easier problem.

## What is Lami’s theorem in physics?

Lami’s Theorem states, “When three forces acting at a point are in equilibrium, then each force is proportional to the sine of the angle between the other two forces”.

## How do you find the resultant vector using a graphical method?

Graphical Vector Addition: To add two vectors, →u+→v u → + v → , graphically, we line the initial point of the second vector, →v , up with the terminal point of the first vector, →u , and then draw a vector from the initial point of →u to the terminal point of →v . The resulting vector is the sum of the two vectors.

## How are vectors represented graphically?

Vectors can be represented graphically as arrows. The length of the arrow indicates the magnitude of the vector. The direction of the arrow indicates the direction of the vector.

## What is the i and J in vectors?

The unit vector in the direction of the x-axis is i, the unit vector in the direction of the y-axis is j and the unit vector in the direction of the z-axis is k. Writing vectors in this form can make working with vectors easier.

## What is a vector diagram in physics?

Vector diagrams are diagrams that depict the direction and relative magnitude of a vector quantity by a vector arrow. Vector diagrams can be used to describe the velocity of a moving object during its motion. For example, a vector diagram could be used to represent the motion of a car moving down the road.

## What is graphical method in quantitative techniques?

Graphical method to solve Linear Programming problem (LPP) helps to visualize the procedure explicitly. It also helps to understand the different terminologies associated with the solution of LPP. Linear programming problems with two variables can be represented and solved graphically with ease.

## Why simplex method is better than graphical method?

Differencesbetween graphical and simplex methods: (1) Graphical method can be usedonly when two variables are in model; simplex can handle any dimensions. (2) Graphical methodmust evaluate all corner points (if the corner point method is used); simplex checks a lessernumber of corners.

## Which graphical method is used to measure distribution?

Dear student, Lorenz curve is used to measure dispersion graphically, it is a cumulative percentage curve which shows the percentage of items against the corresponding percentage of the different factors distributed among the items.

## What is the graphical representation of Boyle’s Law?

(3) Graphical representation of Boyle’s law: Graph between P and V at constant temperature is called isotherm and is an equilateral (or rectangular) hyperbola.

## How do you explain graphical representation?

Graphical representation refers to the use of charts and graphs to visually display, analyze, clarify, and interpret numerical data, functions, and other qualitative structures.

## What steps would you take to present data graphically?

1. Create a frequency table, bar graph, pareto chart, pictogram, or a pie chart to represent a data set.
2. Identify features of ineffective representations of data.
3. Create a histogram, pie chart, or frequency polygon that represents numerical data.
4. Create a graph that compares two quantities.

## What are the 6 types of graphs?

• Statistical Graphs (bar graph, pie graph, line graph, etc.)
• Exponential Graphs.
• Logarithmic Graphs.
• Trigonometric Graphs.
• Frequency Distribution Graph.

## Which graphical method is best for portraying the data?

Bar charts and pie charts can be used to display categorical data. The heights of bars in a bar chart represent the frequencies (or relative frequencies) in each group.

## What are the graphical methods of representing statistical data?

Generally four methods are used to represent a frequency distribution graphically. These are Histogram, Smoothed frequency graph and Ogive or Cumulative frequency graph and pie diagram.

## What are the 4 types of correlation?

• Positive and negative correlation.
• Linear and non-linear correlation.
• Simple, multiple, and partial correlation.