document.write( "Question 199753: Which of the following equations represents a line I that goes through (-1,-3) and has a slope of 4?\r
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document.write( "A) y=4x-3
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document.write( "B) y=4x+1
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document.write( "C) y=4x-1
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document.write( "D) y=4x+3 \n" );
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Algebra.Com's Answer #150119 by tutor_paul(519)![]() ![]() You can put this solution on YOUR website! All of the possible solutions are written in \n" ); document.write( "m = slope \n" ); document.write( "b = Y-intercept \n" ); document.write( ". \n" ); document.write( "You are given the information that the slope is 4 and that the line goes through a point. If you graph the point (-1,-3), you can figure out the Y-intercept. Simply count 4 units \"up\" on the graph (positive direction) and 1 unit to the \"left\" on the graph (also positive direction). Why? because the slope is the change in y divided by the change in x. So on the graph, you are now sitting at point (0,1). Thus 1 is the Y-intercept. \n" ); document.write( ". \n" ); document.write( "So the correct equation of the line is: \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "============== \n" ); document.write( "Good Luck, \n" ); document.write( "tutor_paul@yahoo.com \n" ); document.write( " |