document.write( "Question 132869: could someone please show me how to grap and identify the y-intercept??
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Algebra.Com's Answer #97091 by vleith(2983)![]() ![]() ![]() You can put this solution on YOUR website! The easiest way to graph simple linear equations like this one is to remember this: \n" ); document.write( "Only two points are required in order to graph a line. \n" ); document.write( "Points are just (x,y) pairs. \n" ); document.write( "To make the math easy, I just use 0 for one of the values and then solve for the remaining one. \r \n" ); document.write( "\n" ); document.write( "In this case: \n" ); document.write( "Setting x = 0, yields \n" ); document.write( " \n" ); document.write( "Thus, \n" ); document.write( "So one point is (0,10)\r \n" ); document.write( "\n" ); document.write( "Now use y = 0 and solve for x. \n" ); document.write( " \n" ); document.write( "Thus \n" ); document.write( "Another point on the line is (10,0)\r \n" ); document.write( "\n" ); document.write( "Plot those two points and you have the graph.\r \n" ); document.write( "\n" ); document.write( "As far as a y-intercept goes, all that means is \"find the point where the line crosses the y axis\". What do you know about the value of x for any point that is on the y axis? That's right, x is always 0. We have already found the point (0,10), so you already have the answer :)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |