If the y -values of a set of data decrease by 7 for each increase of 1 in the x -values a quadratic function may be appropriate to model the data.

Question

Quizplus · Accepted Answer

If the y-values decrease by a constant amount for each increase in x-value, this suggests a linear relationship and not a quadratic function. A quadratic function would have a constant change in the change of y-values (i.e. the second difference would be constant) which is not present in this scenario.

If the Y -Values of a Set of Data Decrease