document.write( "Question 366561:
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\n" ); document.write( "• How about also showing the two lines: 2x + 3y = 7 & 4x + 6y = 11 are parallel? \r
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Algebra.Com's Answer #261229 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi, 
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document.write( "In both cases put, the lines you are comparing, into the slope intercept form:
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document.write( "y = mx + b  by solving for y and then review their slopes\r
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document.write( "first ex: lines perpendicular? 
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document.write( "perpendicular lines have slopes that are negative reciprocals of one another
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document.write( "2x – 3y = 5    y = (2/3)x - (5/3)
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document.write( "3x + 2y = 7    y = -(3/2)x + 7/2
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document.write( "Yes, perpendicular -(3/2) is the negative reciprocal of 2/3\r
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document.write( "second ex: lines parallel? 
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document.write( "parallel lines have slopes that are equal to one another (have same slant)
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document.write( "2x + 3y = 7     y = -(2/3) +(7/3)
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document.write( "4x + 6y = 11    y = -(4/6)x + (11/6)
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document.write( "Yes, parallel  slopes are equal -(4/6) = -(2/3) \n" );
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