document.write( "Question 152667: What is the equation of the line that passes through (4, -2) and is perpendicular to y = 1? @ The line that is perpendicular to y = 1 must be vertical, so it has undefined slope. Hence, it can only be the x coordinate of the defined point: x = 4.
\n" ); document.write( "a. y = ½x + 4
\n" ); document.write( "b. y = -2
\n" ); document.write( "c. Insufficient
\n" ); document.write( "d. none of the above
\n" ); document.write( "

Algebra.Com's Answer #112282 by Alan3354(69443)\"\" \"About 
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What is the equation of the line that passes through (4, -2) and is perpendicular to y = 1? @ The line that is perpendicular to y = 1 must be vertical, so it has undefined slope. Hence, it can only be the x coordinate of the defined point: x = 4.
\n" ); document.write( "a. y = ½x + 4
\n" ); document.write( "b. y = -2
\n" ); document.write( "c. Insufficient
\n" ); document.write( "d. none of the above
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\n" ); document.write( "y = 1 is a vertical line, parallel to the y axis, so a line perpendicular to it will be parallel to the y axis.\r
\n" ); document.write( "\n" ); document.write( "Since is passes thru (4,-2), y has to equal -2. So it's b, y = -2
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