You can not use either of them because neither of them have a variable= to the eqaution
ex.) y= 3x+25
Just split it in to three rhombuses and then split each rhombus in half.
You will now have six triangles
The line y=3 is a vertical line. Thus, another line that is perpendicular to y=3 is a horizontal line. If this horiz. line passes thru the point (5, -6), then x = 5 is the desired equation.
The value of x in the this picture is x=11.5
