Emmanuel has performed and experiment, and plotted the results on a graph. The plot his a downward curve to it, and the function of best fit is
y = -0.4x2 + 1.1x + 2.9. Which term(s) accurately describe
this relationship?

Select one or more:
a. negative correlation
b. inversely proportional relationship
•c. no correlation
•d. non-linear
•e. linear
f. sinusoidal relationship