Answer: B) x = -3
Every point on this line has one thing in common: the x coordinate is -3. This is why x is fixed at -3, so we simply say the equation is x = -3
Some example points on this line are (-3,10) and (-3,2)
The y coordinate can be anything you want, so that is why it doesn't show up at all (because it doesn't affect how x will turn out).
