Final answer:
To determine the constant k for a linear function represented by a set of data points, one should plot the points on a graph, draw a trend line using least-squares regression, and then calculate the slope of this line, which corresponds to k.
Step-by-step explanation:
The student is working with a set of data points and needs to determine the value of a constant for a function, likely of the form f(x) = kx or a similar linear relationship. To find the value of the constant k, the student should plot the given data points on a graph and then determine the slope of the trend line that best fits the data. This can be done by calculating the slope (rise over run) between the different points, or by using a least-squares regression method if using a calculator or specific software.
Once the data is plotted and the best-fit line is drawn, the slope of this line will provide the value of k. If the equation is of the form y = kx, then the slope of the line is k. If the function's formula is slightly different, the method to find k may involve more steps, but the principle remains the same.