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A Theory is a set of ideas or explanations on a particularphenomenon gained through scientific study

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A graph is a visual representation of numerical or other information, often used for comparative purposes. Mathematical graphs include those in geometry that indicate poin…ts, lines, and curves within a Cartesian coordinate system. Other types of graphs (bar graphs, pie graphs) display numerical values or percentages as lengths or areas, and may use colors to indicate the data for more than one set of values. (MORE)

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A textual graph is a graph where the results and comparisons are written out instead of expressed in numbers. A textual graph has a list of comparisons divided into column…s much like a pros and cons list. (MORE)

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I think it is to show the data you have collected. and to present it in a summary form, wich some people find easier to understand.

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Graphs and graphing are an important part of medicine. This is because graphs are used to test new medicine and monitor risks.

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a graph that contains at least one null vertex is called forest answer from :abdul rasheed rind: "the collection of trees is called forest" SS:A forest is an undirected gr…aph, all of whose connected components are trees; in other words, the graph consists of a disjoint union of trees. (MORE)

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A graph has two axes, the one running top to bottom (vertical or y axis) and one running right to left (horizontal or x axis). You can run your finger up the y axis to the poi…nt where it is at the same height as the point on the line you are interested in, and note the number on the y axis, then run your finger across to the point on the line you are interested in, then take your finger down to the x axis and note the number of that axis, then combine the two. For example, if the graph shows height on the y axis and time on the x axis, you go up the y axis to say, 23 cm, then across to the point on the line, then down to the x axis which is say, 12 hours, then you know that by 12 hours the plant (for example) had grown 23 cm. (MORE)

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If the graph start and end with same vertex and no other vertex can be repeated then it is called trivial graph.

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20c + 5 = 5c + 65 Divide through by 5: 4c + 1 = c + 13 Subtract c from both sides: 3c + 1 = 13 Subtract 1 from both sides: 3c = 12 Divide both sides by 3: c = 4 20c + 5 = 5c …+65 20c - 5c= 65 - 5.
15c = 60.
15c/15 = 60/15.
c = 4 (alternative method). (MORE)

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In graph theory, a planar graph is a graph that can be embedded in the plane, i.e., it can be drawn on the plane in such a way that its edges intersect only at their endpoints…. In other words, it can be drawn in such a way that no edges cross each other. (MORE)