document.write( "Question 384149: I am really having a hard time with finding intercepts to a problem so I can graph it. I am having a hard time following what numbers to put where to find the x and y intercepts. my problem I have to slove and graph is 3x-4=12. Is there an easy way to find these intercepts. I am 59 yrs old and never took algebra before, and now I am in college algebra and really need some help. Any help to make the steps easier to find the x and y intercepts would be appreciated.
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document.write( "Thank you
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document.write( "Millie Ives \n" );
document.write( "
Algebra.Com's Answer #272024 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Perhaps the problem should be \n" ); document.write( "3x - 4y = 12. \n" ); document.write( "Put it in the slope/intercept form which is y = mx + b, where m=slope, b=y intercept \n" ); document.write( "subtract 3x from both sides \n" ); document.write( "-4y = -3x + 12 \n" ); document.write( "y has to be positive, multiply both sides by -1 \n" ); document.write( "4y = +3x - 12 \n" ); document.write( "The coefficient of y has to be 1, divide both sides by 4 \n" ); document.write( "y = \n" ); document.write( "y = \n" ); document.write( ": \n" ); document.write( "the y intercept occurs when x=0, replace x with 0, and find y \n" ); document.write( "y = \n" ); document.write( "y = 0 - 3 \n" ); document.write( "y = -3, is the y intercept \n" ); document.write( "The ordered pair to graph this; x=0, y=-3 \n" ); document.write( ": \n" ); document.write( "The x intercept occurs when y = 0, write it like this, and solve for x \n" ); document.write( " \n" ); document.write( "Add 3 to both sides \n" ); document.write( " \n" ); document.write( "multiply both sides by 4, to get rid of the fraction \n" ); document.write( "3x = 4(3) \n" ); document.write( "3x = 12 \n" ); document.write( "Divide both sides by 3 \n" ); document.write( "x = \n" ); document.write( "x = 4; is the x intercept \n" ); document.write( "the ordered pair to graph this: x=4, y=0 \n" ); document.write( ": \n" ); document.write( "Graphically it should be apparent \n" ); document.write( " \n" ); document.write( "You can see the line intercepts the y axis at -3 \n" ); document.write( "and the x axis at +4 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "How about it, did this shed some lite on this \"intercept stuff\" for you? \n" ); document.write( " |