document.write( "Question 511868: The points A(1,7), B(20,7) and C(p,q) form the verticies of a triangle ABC. The point D(8,2) is the mid-point of AC.
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document.write( "a) Find the value of p and the value of q. \n" );
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Algebra.Com's Answer #342430 by stanbon(75887) ![]() You can put this solution on YOUR website! The points A(1,7), B(20,7) and C(p,q) form the verticies of a triangle ABC. The point D(8,2) is the mid-point of AC. \n" ); document.write( "a) Find the value of p and the value of q. \n" ); document.write( "A(1,7),C(p,q) \n" ); document.write( "midpoint (8,2) \n" ); document.write( "--- \n" ); document.write( "Fact: The midpoint coordinates are the average of the \n" ); document.write( "corresponding endpoint coordinates. \n" ); document.write( "---------------------- \n" ); document.write( "Solve: \n" ); document.write( "(1+p)/2 = 8 \n" ); document.write( "--- \n" ); document.write( "(7+q)/2 = 2 \n" ); document.write( "---- \n" ); document.write( "1+p = 16 \n" ); document.write( "p = 15 \n" ); document.write( "---- \n" ); document.write( "7+q = 4 \n" ); document.write( "q = -3 \n" ); document.write( "---- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "========== \n" ); document.write( " \n" ); document.write( " |