Question 72154
seeing as a perpendicular line to the y axis doesn't pass through the x axis  thus the equation with a y intercept (b) of 9 is:
y=9
as demonstrated by the graphing of 
{{{ graph( 300, 200, -6, 5, -10, 10, y = 9) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = 9).