document.write( "Question 925828: Please show me step by step these two parts.\r
\n" ); document.write( "\n" ); document.write( "a) Find the distance between the points (7,-8) and (-2,4)
\n" ); document.write( "b) Find the midpoint of the line segment with endpoints (7,-8) and (-2, 4)
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Algebra.Com's Answer #561801 by Alan3354(69443)\"\" \"About 
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a) Find the distance between the points (7,-8) and (-2,4)
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\n" ); document.write( "It's the Pythagorean Theorem.
\n" ); document.write( "\"d%5E2+=+diffy%5E2+%2B+diffx%5E2+=+12%5E2+%2B+9%5E2\"
\n" ); document.write( "\"d%5E2+=+153+=+9%2A17\"
\n" ); document.write( "\"d+=+3sqrt%2817%29\"
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\n" ); document.write( "b) Find the midpoint of the line segment with endpoints (7,-8) and (-2,4)
\n" ); document.write( "It's the average of x any y separately.
\n" ); document.write( "For x: (7-2)/2 = 2.5
\n" ); document.write( "For y: (-8+4)/2 = -2
\n" ); document.write( "--> (2.5,-2) or (5/2,-2)
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