x = 4 is the set of all points where the x coordinate = 4
On a number line, it's easy to graph. You simply place a dot on the number 4. When you extend that number line along the y axis, the dot extends, as well, into a line.
WHY THE LINE X=4 IS A VERTICAL LINE.
yes
x=4
Because X (which in this case is always 4) is the value of the horizontal axis so the only value that can change is Y, the verticle axis.
Because you have only given the point at which a line crosses the "x" axis. Since x = 4, we can draw it only vertically through (4,0).
A vertical line on a graph has an infinite slope, and no y-intercept.
A vertical line!
A horizontal line is perpendicular to a vertical line.
A vertical line has an undefined slope. For the line to be parallel to a vertical line, the slopes would have to be the same. Therefore, the line parallel to a vertical line also has an undefined slope.
A horizontal line is a line perpendicular to the vertical.
all vertical lines are parallel to waht type of line?
its a line that is vertical and a symmetry