Question 95324
BECAUSE THIS LINE HAS NO X VALUE IT IS A VERTICLE LINE PASSING THROUGH THE POINT Y=2/3. 
SO EVERY POINT ON THIS LINE IS Y=2/3 & NEVER CROSSES THE X AXIS.
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To graph any line it needs to be in the form Y=mX+b 
2=3y
3y=2
y=2/3 because this equation has no xX term then the slope=0 & the y intercept is 2/3 (0,2/3).
{{{ graph( 300, 200, -6, 5, -10, 10, y = 2/3) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = 2/3).