points O,P and Q are collinear

This means that they are on a straight line. Is this what you were asking? It is not clear.

To determine if points O, P, and Q are collinear, you can follow these steps:

1. Gather the coordinates of the three points, O, P, and Q. Let's say the coordinates of O are (x1, y1), P are (x2, y2), and Q are (x3, y3).

2. Calculate the slopes between the pairs of points. The slope between two points (x1, y1) and (x2, y2) can be calculated using the formula:

slope = (y2 - y1) / (x2 - x1)

Calculate the slopes between OP and OQ:

slope_OP = (y2 - y1) / (x2 - x1)
slope_OQ = (y3 - y1) / (x3 - x1)

3. If the slopes between OP and OQ are equal, then the points O, P, and Q are collinear. In other words, if slope_OP = slope_OQ, then the points are collinear.

Note: It is important to acknowledge that due to potential rounding errors, it is recommended to use a tolerance value when comparing the slopes. For instance, you can check if |slope_OP - slope_OQ| <= tolerance, where tolerance is a very small number.

By applying these steps and comparing the slopes of OP and OQ, you can determine if the points O, P, and Q are collinear.