Final answer:
Without a specific set of existing coordinates, we cannot determine which set should be changed to (11, 6) for a linear function. A linear function requires points to lie on a line with a consistent slope and y-intercept. More context is needed for a precise answer.
Step-by-step explanation:
To determine which set of coordinates should be changed to (11, 6) to make a linear function, we need to consider the defining properties of a linear function. A linear function is represented by an equation of the form y = mx + b, where m is the slope and b is the y-intercept. Therefore, altering a set of coordinates to form a straight line would require that they fit into this linear equation.
We do not have enough information given to identify which exact set of coordinates needs to be changed. Usually, you would have a set of points, and you would change one to ensure they all lie on a straight line. More information or context is required to provide a specific answer. The generic process would involve analyzing the existing points and determining if changing one to (11, 6) would result in a consistent slope (change in y)/(change in x) and y-intercept with the other points.