## Through a line and a point not in the line…

### When we talk about a line and a point not on the line, we are referring to a specific mathematical concept called a line-point relationship

When we talk about a line and a point not on the line, we are referring to a specific mathematical concept called a line-point relationship. In geometry, this relationship can be explained through various terms such as collinear, intersecting, or parallel. Let’s explore each of these cases:

1. Collinear: A line and a point are said to be collinear if the point lies on the same line. In other words, they are situated on a single straight line. This implies that the line passes through the specified point. For example, if a line is defined by the equation y = 2x + 3, and a point (4, 11) is given, we can conclude that the point lies on the line because when we substitute x = 4 into the equation, we get y = 2(4) + 3 = 11.

2. Intersecting: When a line and a point not on the line are not collinear, they are said to intersect. This means that the line and the point coincide or cross paths at a particular location. In this case, it’s possible to find the point of intersection between the line and the point. For instance, if we have a line defined by the equation y = -3x + 2 and a point (1, 5), we can substitute x = 1 into the equation to find y = -3(1) + 2 = -1. Therefore, the line intersects the point (1, 5) at the point (1, -1).

3. Parallel: Lastly, a line and a point not on the line are considered parallel if they do not intersect and are always equidistant. In other words, the distance between the line and the point remains constant throughout. This occurs when the line and the point lie on different lines that will never meet or cross. An example of parallel lines is y = 2x + 4 and a point (2, 6). Regardless of the value of x, the distance between the line and the point remains constant.

It is important to note that a line-point relationship can further be explored through various mathematical techniques, such as finding the slope of a line or using coordinate geometry. These methods can provide further insights into the characteristics of the line-point relationship and help solve related problems.

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