document.write( "Question 1203122: I have attached a file for the question paper. I cannot do the last question. The markscheme only has the answers, not working, so I don't understand how to do the last question (question 17)\r
\n" ); document.write( "\n" ); document.write( "https://www.11plusguide.com/wp-content/uploads/2019/01/Maths-Paper-2015-Entry-CSSE.pdf\r
\n" ); document.write( "\n" ); document.write( "Please help!!\r
\n" ); document.write( "\n" ); document.write( "Thanks \n" ); document.write( "
Algebra.Com's Answer #838430 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
i get x = 2 because you have a vertical line at x = 2, therefore all points on that line have x = 2.
\n" ); document.write( "the two points shown on that vertical line are (2,5) ande (2,15).\r
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\n" ); document.write( "\n" ); document.write( "i get y = 15 as follows:
\n" ); document.write( "the slope of the line is equal to the change in y divided by the corresponding change in x.\
\n" ); document.write( "the two points you can use are:
\n" ); document.write( "(0,0) and (2,5)
\n" ); document.write( "the slope is (5-0) / (2-0) = 5/2.\r
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\n" ); document.write( "\n" ); document.write( "any two points on that line will generate the same slope.
\n" ); document.write( "the other two points are (2,5) and (6,y)
\n" ); document.write( "the slope is 5/2, therefore you get (y-5) / (6-2) = 5/2.
\n" ); document.write( "simplify to get (y-5) / 4 = 5 / 2
\n" ); document.write( "multiply both sides of that equation by 4 to get:
\n" ); document.write( "y - 5 = 4 * 5 / 2 which becomes:
\n" ); document.write( "y - 5 = 10
\n" ); document.write( "add 5 to both sides of that equation to get:
\n" ); document.write( "y = 15.\r
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\n" ); document.write( "\n" ); document.write( "your solution for this problem should be x = 2 and y = 15.\r
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\n" ); document.write( "\n" ); document.write( "i graphed the equation for that line so you can see it better.
\n" ); document.write( "the equation is y = 5/2 * x
\n" ); document.write( "when x = 2, y = 5/2 * 2 = 5
\n" ); document.write( "when x = 6, y = 5/2 * 6 = 15
\n" ); document.write( "here's the graph.\r
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\n" ); document.write( "\n" ); document.write( "as a bonus, you get:
\n" ); document.write( "when y = 12, the equation becomes 12 = 5/2 * x
\n" ); document.write( "solve for x to get x = 2/5 * 12 = 24/5 = 4.8, as shown on the graph.
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