Question 823737
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
y = f(x)= -3x-5     |Substituting y for x
 x = -3y - 5 
{{{f^(-1)(x)= -x/3 - 5/3  }}}
{{{drawing(300,300,   -10,10,-10,10, 
 grid(1),
graph( 300, 300, -10,10,-10,10,0, -3x-5, -x/3-5/3))}}}