document.write( "Question 1048012: If this could be answered ASAP, that would be GREAT! Thanks!\r
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document.write( "1.Referring to the figure below, write an equation of the line shown in the
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document.write( " graph. Use the slope and y-intercept format: y = mx + b\r
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document.write( "http://www.ppstest2.com/images2/AL5003.jpg \r
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document.write( "2. Referring to the figure below, write an equation of the line shown in the
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document.write( " graph. Use the slope and y-intercept format: y = mx + b\r
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document.write( "http://www.ppstest2.com/images2/AL5004.jpg\r
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document.write( "Thank you for Helping! \n" );
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Algebra.Com's Answer #663598 by addingup(3677)![]() ![]() You can put this solution on YOUR website! y = how far up, in your graph y = 5 \n" ); document.write( "x = how far along, in your graph x = 4 \n" ); document.write( "m = slope of the line, calculated like this: m = (change in y)/(change in x) \n" ); document.write( "b = the y intercept \n" ); document.write( "See picture below. \n" ); document.write( "Let's write the equation of your line: \n" ); document.write( "m = Δy/Δx \n" ); document.write( "m = 2/3 \n" ); document.write( "b = we don't know, we have to figure it out. \n" ); document.write( "Back to the formula: \n" ); document.write( "y = mx+b \n" ); document.write( "What do we know? We know m, the graph shows us that it's 2/3 \n" ); document.write( "We also know y and x, the graph tells us that x = 4 and y = 5 \n" ); document.write( "Lets re-write the formula with what we know: \n" ); document.write( "5 = (2/3)4+b Now we simply apply algebra: \n" ); document.write( "5 = 8/3+b \n" ); document.write( "5*3/8 = b \n" ); document.write( "15/8 = b \n" ); document.write( "b = 15/8 = 1 7/8 \n" ); document.write( ">>>>>>>>>>>>>>>> \n" ); document.write( "Check: \n" ); document.write( "y = mx+b \n" ); document.write( "5 = (2/3)4+15/8 \n" ); document.write( "5 = 8/3+15/8 cross multiply times denominators to find a common denominator \n" ); document.write( "5 = 64/24+45/24 \n" ); document.write( "5 = 5 (I get 4.542 due to rounding of numbers) \n" ); document.write( "The process is correct, you may want to check out my math and also make sure I used the right numbers, I mean the numbers off of your graph. Let me know if you have questions. \n" ); document.write( ": \n" ); document.write( "John \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |