document.write( "Question 465991: Find the distance between the two points. Round an approximate result to the nearest hundredth. \r
\n" ); document.write( "\n" ); document.write( "( -1,-1) and ( 3,-7) \r
\n" ); document.write( "\n" ); document.write( "Find the midpoint of the line segment having the given endpoints.
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\n" ); document.write( "( 8,-4) and ( -7,8) \r
\n" ); document.write( "\n" ); document.write( "Determine whether the lines are parallel, perpendicular, or neither.
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\n" ); document.write( "y + x = -2 and y - x = -2\r
\n" ); document.write( "\n" ); document.write( "Without graphing, identify the slope and the y-intercept.
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\n" ); document.write( "y = 3x + 9 \r
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\n" ); document.write( "x2 - x = 72 \r
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Algebra.Com's Answer #319369 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
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document.write( "Hi,
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document.write( "Please keep these formulas for reference:
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document.write( "D = \"sqrt+%28%28x%5B1%5D-x%5B2%5D%29%5E2%2B%28y%5B1%5D-y%5B2%5D%29%5E2%29%29\"
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document.write( "( -1,-1) 
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document.write( "( 3, -7)  D = \"sqrt%28%28-4%29%5E2+%2B+6%5E2%29+=+sqrt%2852%29+=+7.21\" to the nearest hundredth\r
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document.write( "Midpoint Pt(x,y):  ( \"%28x%5B1%5D+%2B+x%5B2%5D%29%2F2\", \"%28y%5B1%5D+%2B+y%5B2%5D%29%2F2++%29\")\r
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document.write( "( 8,-4) 
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document.write( "( -7,8)  M = (1/2,2)\r
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document.write( "y + x = -2  OR y = (-1/1)x-2 
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document.write( "y - x = -2  OR y = (1/1)x-2  Lines are perpendicular: Solpes negative reciprocals \r
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document.write( "y = 3x + 9    |slope m = 3 and y-inteecept is Pt(0,9)\r
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document.write( "point-slope formula, \"m+=%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D+-+x%5B1%5D%29\" will come in handy as well\r
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document.write( "x^2 - x - 72 = 0
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document.write( "factoring
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document.write( "(x-9)(x+8)= 0
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document.write( "(x-9)=0
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document.write( "(x+8)= 0   x = 9 and x = -8 are the solutions\r
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