Question 55185
slope-intercept form 
{{{y=mx+b}}}
if a line is perpendicular to 
{{{ y=4x-11 }}}
Then it's slope (m) is -1/4 (the opposite reciprocal)
and the point (x,y) on the line is (-2,1)
Plug these values in and solve for the y-intercept (b)
{{{ y=mx+b }}}
{{{ 1=(-1/4)(-2) + b }}}
{{{ 1 = 1/2 + b }}}
{{{ 1/2 = b }}}
write the equation again, this time with only the m and b values
{{{ y = (-1/4)x + 1/2 }}}