how can we use graphs in real life problems?
145095
We can use graphs to create a more meaningful and visual representation of data.  For instance, pie charts represent the percentage of a data set (51% white, 49% black).  Line graphs can show trends (the rising sales of hybrid vehicles vs. the falling sales of gas-guzzling vehicles).
812091
On 1 graph you could put age(x) and height(y).....and on another graph, you could probably put age(x) and weight(y)......I think :)
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).
1134699
there is a problem in maths that is named "graphes" and the funtion of these routers is to use this solution, u can find it in math books!!!
1183576
just pick two points from the graph\nif you wanna check plug them in the equation\n\n\n\nand when the line crosses the Y axis Y does NOT =0\nX=0 when line crosses Y axis\n\nchoose any set of #s that will not give you the square root of any negative. because that would result in an imaginary #, not a real
778580
Go to this link:\n\nhttp://www.coolmath.com/graphit/index.html\n\nYou can enter your equation and graph it.
204586
Graph the systems using a graphing calculator or on paper.
67612
MS Excel has some good graph making capabilities.
955753
1) Plug in some numbers for the Y and X values\n\n5=x/2+3\n\n8=x/2+3 (SOLVE FOR X ON BOTH OF THOSE FIRST)\n========================\n\n5=-2/x-1\n\n8=-2/x-1\n\n(SOLVE FOR X ON BOTH OF THOSE FIRST)\n\nThen draw the chart with those points
1144569
for graphing, dee-dee-dee
971788
Yes, scatter graphs, but why not try one for males, one for females, and one for all. Investigate if scatter graphs for different groups of people have different lines of best fit. Good luck with your coursework.
332981
Depends:\n\nYou can have as many as needed.  As an example I can have a horizontal axis with time variable in increments of years, a variable T.\nThen I can have 1 or 43 or whatever number of bar graphs coming out of each year as x1, x2, x3, etc. to represent maybe toy sales of x1=# cars, x2=# dolls, x3=# balloons, etc. as different colored bars.\n\nAs for a line graph if it is a single line like the number line it usually will have only one variable represented.
903787
It allows you to see the relationship between the variables better than you could in a chart.  You can also find the mathematical relationship by calculating the slope of the graph and determining the equation of the line.
771697
Try Google or Yahoo.  You'll find worked examples there.  I think it needs diagrams to understand; they and the accompanying explanations are too complex to attempt to reproduce here.
715220
yep, here they are, are you doing a pri=oject? i might be doing the same one.\n\nhttp://www.hostsrv.com/webmab/app1/MSP/quickmath/02/pageGenerate?site=mathcom&s1=graphs&s2=equations&s3=basic\n\nhttp://www.webgraphing.com/plotting_advanced.jsp
929195
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.
249763
by plotting the points, use a graphing calculator for best answers