document.write( "Question 181196This question is from textbook College Algebra the graphing approach
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\n" ); document.write( "Write slope-intercept form of the equation of line through the point\r
\n" ); document.write( "\n" ); document.write( "(-3.9,-1.4) perpendicular to 6x +2y = 9 \n" ); document.write( "
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Write slope-intercept form of the equation of line through the point
\n" ); document.write( "(-3.9,-1.4) perpendicular to 6x +2y = 9
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\n" ); document.write( "1st, find the slope, m, of 6x +2y = 9 by putting it into slope-intercept form. BTW, that means solve for y.
\n" ); document.write( "6x +2y = 9
\n" ); document.write( "2y = -6x+9
\n" ); document.write( "y = -3x + 9/2
\n" ); document.write( "The slope is -3
\n" ); document.write( "The slope of lines perpendicular is the negative inverse, +1/3
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\n" ); document.write( "Then,
\n" ); document.write( "y-y1 = m*(x-x1) where (x1,y1) is the point
\n" ); document.write( "y+1.4 = (1/3)*(x+3.9)
\n" ); document.write( "y+1.4 = (1/3)x + 1.3
\n" ); document.write( "y = (1/3)x - 0.1
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