Could you please suggest an easy method to learn about basic graphs and how to analyse the graph?
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Wikipedia search Functions.\n\nAn easy method?  Sorry.  There aren't any.  It takes work.  \n\nThe first step is to learn how to graph and chart.  Then you must learn about functions, what they are and how they are used.\n\nAnalysis is a whole branch of mathematics! but what you need to get started is some calculus.  Work through an Introductory calculus textbook and you will be well on your way to understanding.  If you don't have any algebra yet you need that and maybe some trigonometry first.  Statistics and probability for some charts.  You need to be able to use the following concepts in order to analyze a graph: limit, slope, tangent, discrete, smooth, normal, rate of change, cumulative, integral, maxima, minima, inflection,  path integral, intersection.  Some introductory books on physics might be a good place to begin to see how graphs are used to communicate ideas.  Visit your local library.
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http://mathworld.wolfram.com/ThomassenGraph.html
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There are many sources you can download for free from Microsoft Office that may help you on your way. Graphs can, in fact, be created in either of these programs.
826809
It is probably best to determine the range after you have the graph.  You will need to look at the local maximums, local minimums, and the horizontal asymptotes to determine the range.  (In other words, it is not a fast problem).
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Make a table of values.  Then plot the points.  Your graph should be a "V" shape (not a parabola which is U shaped)---whether upright, sideways, or downwards.
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Here's one that is free that I've been using in a college class.\n\nhttp://math.exeter.edu/rparris/winplot.html
979117
From a table -- see which y-value corresponds to x=0\nFrom a graph -- see where the graph crosses the y-axis\nFrom an equation -- get the equation in y=mx+b form; the y-interecept is b
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u spelt it wrong :-(\nit should have been Dijikstra\n\nSTDMETHODIMP CDijkstra::ShortestPath(long node1, long node2)\n{\n    ReleaseGraph();\n    // init d and pi\n    InitializeSource(g, g.m_nodes[node1-1]);\n    // Set S empty\n    VTYPE_NODE S;\n    // Put nodes in Q\n    VTYPE_NODE Q;\n    VTYPE_NODE::iterator kl;\n    for(kl=g.m_nodes.begin(); kl<g.m_nodes.end(); kl++)\n    {\n        CNode node = (*kl).Copy();\n        Q.push_back(node);\n    }\n    // Algorithm\n    while(Q.size())\n    {\n        CNode nod = ExtractMin(Q); // the minim value \n                // for the shortest path up to this step\n        S.push_back(nod);\n        // each vertex v which is a neighbour of u\n        VTYPE_NODE::iterator kl;\n        for(kl=g.m_nodes.begin(); kl<g.m_nodes.end(); kl++)\n        {\n            if(ExistEdge(nod, (*kl)))\n            {\n                bool gasit = false;\n                VTYPE_NODE::iterator kll;\n                for(kll=Q.begin(); kll<Q.end(); kll++)\n                {\n                    if((*kll).m_NodeNr == (*kl).m_NodeNr)\n                    gasit = true;\n                }\n                if(gasit)\n                    Relax(nod, (*kl), GetEdgeVal(nod, (*kl)));\n            }\n        }\n    }\n    RefreshDone(node1, node2);\n    return S_OK;\n}
635075
Graph X=-4 with dotted lines\n\nthen color everything below the line.
955392
an analysis, or a graph/chart/plot
1144014
draw a picture of the graph over the specified interval.  divide the graph into vertical rectangles.  the area under the curve will be the sum of the areas of the rectangles.  saying that youve made "n" rectangles, the only way to get the exact area is to find the sum for the limit as n approaches infinity.  work from that concept.  if you already knew that, or need more help or something, email me and i can give you more steps and a much more detailed description.  that would take a really long time though so im gonna see if this helps first.
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http://www.chemtutor.com/\nthis was a site that helps all in the basics That is how i learned it.
927164
numbers, statistics, algerbra, formulae, graphs, calculator qustions
427592
www.grisoft.com\navgfree
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Go to this link:\n\nhttp://www.coolmath.com/graphit/index.html\n\nYou can enter your equation and graph it.
158569
Here is a tutorial...you can change any of the parameters that you mentioned and look at the graph as it is made and changed...really cool if you ask me.\nhttp://www.analyzemath.com/logfunction/logfunction.html
100190
plot these coordinates:\n(0,0),(22.5,-1),(45,0),(67.5,1),(360,0), etc., etc.\n\nconnect them together in a curve and you'll have it.\n\nsine graphs are a series of curved lines. they start at zero, go up to one, go down to zero, go down to -1, and go up to 0 again.\n\nthe negative in front of the sine means that the graph is reflected along the x-axis. so that the 0, 1, 0, -1, 0 sequence is switched to 0, -1, 0, 1, 0.\n\nthe 4 in front of the x means that the normal period for the graph to make a complete curve is divided by for. so instead of the graph following the sequence every 90 degrees, it is done every 22.5 degrees.