A line chart or line graph is a kind of chart to display information as a series of data points called 'markers'. These markers are connected by straight line segments. It is a very commonly used chart in many fields. Normally measurement points are ordered by their x-axis values and joined with straight line segments. A line chart is normally used to visualize a data trend over the periods of time or to represent a time series drawn chronologically.
A pie chart (or a pie graph) is a circular statistical graphical chart, which is divided into slices in order to explain or illustrate numerical proportions. In a pie chart, central angle, area and an arc length of each slice is proportional to the quantity or percentages it represents. Total percentages should be 100 and total of the arc measures should be 360°. Following illustration of pie graph depicts the cost of construction of a house.
A bar chart or bar graph is a type of chart to represents Grouped data with rectangular bars where lengths of rectangles or bars are proportional to the values that they represent. The bars can be plotted or drawn vertically or horizontally. A vertical bar chart is also called a column bar chart.
To begin a major business or an industry a lot of cash is required. It is past the limit of maybe a couple persons to orchestrate such an immense sum. Be that as it may, a few persons relate together to form an organization They then draft a proposition issue an outline (for the sake of the organization), clarifying the arrangement of the undertaking and welcome people in general to put cash in this venture, They, pool up the assets from the general population, by relegating then shares of the organization.
An equations of the form ax + by +c= 0, where a, b, c ⊂R and a≠0 , b≠0 and x ,y are variables, is called a linear equation in two variables.
Solution: Any pair of values of x and y which satisfy the equation ax + by + c =0, is called its solution.
In coordinate geometry, points are placed on the "coordinate plane" as shown below. It has two scales - one running across the plane called the "x axis" and another right angle to it called the y axis. (These can be thought of as similar to the column and row in the paragraph above.) The point where the axes cross is called the origin and is where both x and y are zero.
Simple Interest: If the interest on a sum of money borrowed for a certain time period is reckoned uniformly, it is called as Simple Interest.
If Principal = P, Rate = R% per annum, Time = T years, then
Simple Interest (S.I) = P * T * R / 100
The above expression involves four quantities: P, I, T and R. If three of them are known to us,the fourth one can be easily found out.
Odd days: In a given period, the quantity of days more than the complete weeks are called Odd days.
Leap Year: Every year divisible by 4 in a leap year. But not all century years are leap years. Only those century years which are divisible by 400 are leap years and other century years are ordinary years. As an example, 1100, 1300, 1400, 1500, 1700 are ordinary years but 1200, 1600, 2000 are leap years. So every 4th century is a leap year.
Cost Price, (c.p.) = The price, at which an article is purchased, is called its cost price.
Selling price (s.p) = The price, at which an article is sold, is called its selling price.
Profit or Gain = (S.P) - (C.P)
Loss = (C.P) - (S.P)
Gain or Loss is always reckoned on C.P.
Ratio represents the proportion in which a number contains another number. A ratio is represented by a/b or a:b. The duplication or division of every term of a proportion by the same non zero number does not influence the proportion.Subsequently, 3:5 is the same as 6:10 or 9:15 or 12:20 and so on.