SOLUTION: Hi there. I'm struggling with this problem... Which equation has a graph that is a vertical line? A. 2x = y B. 3x - 2 = 0 C. y + 5 = 3 D. x - y = 0 The answer is

Algebra ->  Graphs -> SOLUTION: Hi there. I'm struggling with this problem... Which equation has a graph that is a vertical line? A. 2x = y B. 3x - 2 = 0 C. y + 5 = 3 D. x - y = 0 The answer is       Log On


   



Question 832853: Hi there. I'm struggling with this problem...
Which equation has a graph that is a vertical line?
A. 2x = y
B. 3x - 2 = 0
C. y + 5 = 3
D. x - y = 0
The answer is B, but I do not understand. Could you please explain this?
Thank you,
Isabella

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
You have to imagine that you are on a vertical
line, and you can move up or down but you
have to stay on the vertical line.
Whenever you move, you check your
(x,y) which defines your location on the
x-y plane.
You notice that x never changes, no matter
what y is.
Going back to
B. +3x+-+2+=+0+
+3x+=+2+
+x+=+2%2F3+
This says " I don't care what y is, I alway want
x to be 2/3." This is the same situation.
It is the vertical line +x+=+2%2F3+