Question 822196
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
What is the slope of the line that is perpendicular to the line whose equation is 
2x + y = 4    |the standard slope-intercept form for an equation of a line is {{{y = green(m)x + b}}}
0r  y = {{{highlight(-2)}}}x + 4,   m = -2
line that is perpendicular to this line:  m =  {{{highlight_green(1/2)}}}
Note:   {{{(-2)(1/2) = -1 }}}