document.write( "Question 999630: http://172.85.76.57/Library/00001230_84_624_A1.png Can you please go to the link and post the answer here? I'm bad at this kind of thing. \n" ); document.write( "
Algebra.Com's Answer #617214 by Theo(13342) You can put this solution on YOUR website! here's the picture of your graph.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "from what i can see, the graph crosses the y-axis at (0,1) and it crosses the x-axis at (1.5,0)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the slope is the change in y divided by the change in x.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the formula for that is (y2-y1) / (x2-x1).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if you let (x1,y1) = 0,1) and you let (x2,y2) = (1.5,0), then:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(y2-y1) / (x2-x1) becomes (0-1) / (1.5-0) which becomes -1 / 1.5 which becomes -2 / 3 if you need to have a simplified version where both numerator and denominator are integers.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-2/3 was derived by multiplying -1/1.5 * 2/2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the y-intercept is the value of y when x is equal to 0.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "since one of your points is at (0,1) which means the value of y when x = 0, your y-intercept is already shown at y = 1.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the slope intercept form of the equation for a straight line is y = mx + b.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "m is the slope and b is the y-intercept.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the equation of your line is therefore y = -2/3 * x + 1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "when x = 0, the value of y is -2/3 * 0 + 1 which is equal to 1.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "when x = 1.5, the value of y is -2/3 * 1.5 + 1 which is equal to -3/3 + 1 which is equal to -1 + 1 which is equal to 0.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "these two points of (0,1) and (1.3,0) are the same two points you show on the graph you supplied, as best i can determine.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "here's a graph of that equation.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if i got the points correctly, the equation is y = -2/3 * x + 1\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |