### Why is the line x4 a vertical line?

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).

### Explain in your own words why the line x4 is a vertical line?

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.

### Explain why the line x4 is a vertical line?

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.

### What is the slope of a line parallel 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.

### What line is perpendicular to a vertical line?

A horizontal line is perpendicular to a vertical line.

### What is a line perpendicular to the vertical?

A horizontal line is a line perpendicular to the vertical.

### What is a vertical ray?

It is a line that is vertical from a line segment or a intersecting line .

### What type of line is perpendicular to a vertical line What type of line is parallel to a vertical line?

all vertical lines are parallel to waht type of line?

### What makes a line a vertical line?

a vertical line is a line which is made from top to bottom or bottom to top.

### What is the equation of a vertical line?

The equation of a vertical line is x = a where a is a constant.

### What describes the slope of a vertical line?

The slope of a line becomes extremely large in magnitude as the line approaches being vertical; and is undefined or infinite for a truly vertical line.

### What is the only type of line that is not a function?

A vertical line. Remember that one test to see if a relation is a function is the vertical line test. A vertical line would fail that of course.

### What is the run of a vertical line?

There isn't any and that is why the slope of a vertical line is not defined.

### At the right angle to a vertical line is called?

A line that is at right angles to a vertical line is said to be horizontal.

### What is a up and down line called?

im guessing it is a vertical line. or a collinear but i think its more a vertical line

### What is a vertical line in art form?

A vertical line is a verticle line in art and draw something up and down!

### What is a vertical and horizontal line?

A vertical line goes North And South and a horizontal line goes East And West.

### What is vertical and horizontal?

A vertical line goes upwards, and a horizontal line goes across.

### What is the vertical axis of a graph called?

The y-axis is the vertical line on a line graph.

### Is a vertical line parallel to the horizon?

No, the horizon is horizontal. A vertical line is perpendicular to the horizon.

### What does a vertical line tell you?

A vertical line can be used to test whether or not a graph is a function.

### How does a vertical line look?

A vertical line is drawn parallel to the Y-Axis. An example of an equation that is a vertical line is x = 3. In architecture, it is drawn perpendicular to the horizon line, regardless of the aspect ratio.

### What is the definition of a vertical line?

A vertical line is one which rises at right angles to a base-line. Another word for it is a perpendicular.

### What is a vertical line on a coordinate grid?

In a vertical line, all the x values will be the same. This means that all vertical lines will have the equation X=?

### If a line has an undefined slope what can you say about the horizontal coordinates of each of the points on the line?

A vertical line has an undefined slope. If a line is vertical, the horizontal coordinate, commonly known as the x coordinates, must all be the same. If not, the line would not be vertical.

### Where is the vertical line in a graph?

Any line that goes straight up and down and doesn't lean either way is a vertical line.

### On a graph the vertical line is...axle?

On a typical graph, the vertical line is the y-axis, they horizontal line is the x-axis.

### What is the term for the vertical line on a coordinate plane?

The vertical line on the coordinate plane is the y axis and the horizontal line is the x axis

### Why cant you find ymx b to find the equation of a vertical line?

Because in a vertical line the slope is undefined, there is no "y" answer or "b" value and the line is in the form of x = some number such as x = 3 which is a vertical line.

### What best describes the slope of a vertical line?

The slope of a vertical line would be parallel to the y axis.

### What is the name of a vertical line on a graph?

The name of a vertical line is simply named by the number on the x axis it is on.

### What Is The Other Name For Vertical Number Line?

The y axis on the Cartesian plane is a vertical number line

### What do you call a function whose graph is a non-vertical line?

It is a function. If the graph contains at least two points on the same vertical line, then it is not a function. This is called the vertical line test.

### What is the slope of a vertical line?

Good question. They have infinite slopes. Incidentally, vertical lines are not functions in the formal sense. One x value is mapped on to an infinite number of y values. A function requires that each x maps on to only one y value.

### What is the symbol for diode?

The symbol for a diode is a horizontal line with an arrow pointing to an intersecting vertical line, the horizontal line continues on the other side of the vertical line.

### What is the difference between a line with a slope of zero and no slope?

A line with slope of zero is horizontal. A line with no slope is vertical because slope is undefined on a vertical line.

### When does a graph represents a function?

take a vertical line, if another line intersects that vertical line at 2 points, then it is a function.In other words,a graph represents a function if each vertical line meets its graph in a unique point.