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Graphs

Graphs often collect a set of data in a group of people. There are many kinds of graphs: pie charts (circle charts), bar graphs, line graphs, data tables, pictographs, flow charts, histograms, etc.

2,316 Questions

In a line graph does 0 have to be in the y axle?

The y-axis (not axle) is the set of all points on the coordinate plane for which x = 0. So if you are looking for the point on the line for which x = 0 then it must, by definition, be on the y-axis.

What are the differences between line graph and line plot?

On a line graph, the points are connected by a line. Hence the name 'line graph". A line plot is, A line plot can be used as an initial record of discrete data values. The range determines a number line which is then plotted with X's for each data value.

What is the difference between double bar and double line graphs?

Double Bar graphs are usually used to show different amounts of different subjects and are depicted using "bars".

Double Line graphs are used to show fluctuations and changes in different subjects. They are presented with straight, curved or broken lines.

In algebra when you have a straight line graph if a point on the line y equals 3x-4 and has an x coordinate of 50 what is the y coordinate?

y = 3x - 4 or f(x) = 3x - 4 f(50) = 3(50) - 4 = 150 - 4 = 146 Thus, the y coordinate of the point is 146.

What does the bar graph usually represent?

usually it represents the the air presure

How does a line graph work?

With a line graph you use lines. You put numbers at the bottom of the graph and numbers on the side. In other words the bottom numbers are on the x axis and the numbers on the side are on the y axis. Then when you have the dots on the graph you connect them and then it makes a line.

What are the disadvantages of a line graph?

extremely inaccurate if you try to draw it freehand and extremely inconvenient if you have to plot fractions or decimal numbers

What is an advantage of using multiple lines on a line graph?

By using multiple lines you can show multiple pieces of data; e.g. if you have a test for the heat of liquids, then you can show multiple different liquids on the same graph. Like water and oil, you can show the water as one line and the oil as another. Saving you the need to make more graphs and making data easier to compare.

Where is the x-axis on a bar graph?

It is the horizontal line or axis below the bars.

Why is a pie graph called a pie graph?

I'm guessing because it has nothing to do with 3.14, it's because it is shaped like a pie!

Explain why bar graphs are useful for comparing data?

so you know the relationship between the 2 variables

What is shown on a line graph?

The values for two variables plotted on two axes

What are the similarities and differences of pictograph writing and ideograph writing systems?

in ideograph writing system symbols are representing not only material stuffs but abstract too, as associations of them. as example, in pictograph writing system circle represents only the sun but in ideograph it also means and god (related with sun), lightness, warmness, day.... ;))

What is a scale in a bar graph?

It can be what numbers you want it to be by 2 s or 10 s it can even be 100 s.

How do you complete pie graphs?

A pie graph needs to be 100% full to be a pie. If you are trying to do the religions of a country you would put the religions and there percentages. A pie graph always needs to be 100% full

How are line graphs different from bar graphs?

Line graphs show change over time more effectively. The arc formed by the points can show an approximate trend.

Bar graphs can more easily show the disparity of change between two points. If you wanted to show how big an improvement was you might want to use a bar graph and show that tremendous bar shadowing the tiny one.

How are data tables and graphs used?

ok they are used by lines and dots and boxes to help you scientifically.