{"id":13392,"date":"2014-02-07T21:53:46","date_gmt":"2014-02-07T21:53:46","guid":{"rendered":"http:\/\/www.mometrix.com\/academy\/?page_id=13392"},"modified":"2025-11-28T12:41:26","modified_gmt":"2025-11-28T18:41:26","slug":"using-a-graph","status":"publish","type":"page","link":"https:\/\/www.mometrix.com\/academy\/using-a-graph\/","title":{"rendered":"Using Graphs Effectively"},"content":{"rendered":"<h1>How to Use Graphs Effectively<\/h1>\n<div class=\"lyte-wrapper fourthree\" title=\"Using a Graph\" style=\"width:420px;max-width:100%;margin:5px auto;\"><div class=\"lyMe\" id=\"WYL_JxnfDVfVZkc\"><div id=\"lyte_JxnfDVfVZkc\" data-src=\"https:\/\/www.mometrix.com\/academy\/wp-content\/plugins\/wp-youtube-lyte\/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2FJxnfDVfVZkc%2Fhqdefault.jpg\" class=\"pL\"><div class=\"tC\"><div class=\"tT\">Using a Graph<\/div><\/div><div class=\"play\"><\/div><div class=\"ctrl\"><div class=\"Lctrl\"><\/div><div class=\"Rctrl\"><\/div><\/div><\/div><noscript><a href=\"https:\/\/youtu.be\/JxnfDVfVZkc\" rel=\"nofollow\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mometrix.com\/academy\/wp-content\/plugins\/wp-youtube-lyte\/lyteCache.php?origThumbUrl=https%3A%2F%2Fi.ytimg.com%2Fvi%2FJxnfDVfVZkc%2F0.jpg\" alt=\"Using a Graph\" width=\"420\" height=\"295\" \/><br \/>Watch this video on YouTube<\/a><\/noscript><\/div><\/div><div class=\"lL\" style=\"max-width:100%;width:420px;margin:5px auto;\"><\/div>\n<div class=\"accordion\"><input id=\"transcript\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"transcript\">Transcript<\/label>\n<div class=\"spoiler\" id=\"transcript-spoiler\">\n<p>Many times, you can use a graph to represent data in a more organized way, and in a more visual way. Say we have the equation y equals 2x minus 3. What can do is plug in a couple of numbers for x and then find out what number we get for y, and then we can come out with some coordinates plug them in here, and then draw a line representing the values of this equation.<\/p>\n<p>We&#8217;re going to start out by plugging in 0 for x. I&#8217;m just going to put parentheses like that. 2 times 0 is 0, minus 3, equals -3, so y equals -3. The first coordinate we get is x equals 0 and y equals -3. We&#8217;re going to plug in 5 for x, so we&#8217;re going to put 5 in parentheses.<\/p>\n<p>We get 10 minus 3 equals 7, so y equals 7. In this case x equals 5, y equals 7. We have these two coordinates you just plug these in to this graph right here, and we can get a line. We have these dash marks here. I need to go ahead and label these, so we have this x axis, which runs horizontal, left to right.<\/p>\n<p>Then we have the y axis, which runs vertical, or up and down. On the right side of the y axis the x axis is positive, and on the left side it is negative. This works similarly for the y axis. Above the x axis it&#8217;s positive, and below it&#8217;s negative. First, we&#8217;re going take a look at this coordinate right here.<\/p>\n<p>We have the x coordinate and the y coordinate, we find x first which is 0, so we are right here. Then we go down to -3 and draw a dot, and I&#8217;m going to go ahead and put the coordinates right there. Then we look for the x coordinate first and then the y coordinates.<\/p>\n<p>We find 5, then we need to go all the way up to 7, we&#8217;re going to need to extend this line a little bit to make it up there. We&#8217;re going to go from 5 all the way up to 7 and draw a dot. Then we just need to draw a line all the way up there.<\/p>\n<p>If you&#8217;re using a piece of paper, you can often use a ruler, so I&#8217;m just going to attempt to freehand this which means the line is not going to be very straight as you can see, but we do need to draw the coordinates -or write the coordinates for that too. Then we have a line, and you can go all the way up this line and see different points on it.<\/p>\n<p>You can go &#8220;Oh okay, if x equals this certain number, then y is equal this certain number.&#8221; Because you can follow it across here, you can go down and find the x coordinate, and then go across and find the y coordinate to figure out some other coordinates here, or to figure out some other values for x and y. Here you just have coordinates written on a page. It may not mean much to you, it&#8217;s hard to visualize what that looks like. Here you have a real visual format, real organized way to view a lot of data, and then be able to keep it and comprehended.<\/p>\n<\/div>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>How to Use Graphs Effectively<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":{"0":"post-13392","1":"page","2":"type-page","3":"status-publish","5":"page_type-video"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/pages\/13392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/comments?post=13392"}],"version-history":[{"count":3,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/pages\/13392\/revisions"}],"predecessor-version":[{"id":279025,"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/pages\/13392\/revisions\/279025"}],"wp:attachment":[{"href":"https:\/\/www.mometrix.com\/academy\/wp-json\/wp\/v2\/media?parent=13392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}