Question 622327
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
what acute angle does a line of slope -3/4 make with a horizontal line?
 tan&#952; = 3/4,  &#952; ~ 36.87°
{{{drawing(300,300,   -6, 6, -6, 6,  
graph( 300, 300, -6, 6, -6, 6,0,3,-.75x))}}}