What does it mean if the rate of an airplane is modeled by the function f(x) = 1x + 500?
A) The airplane's rate increases exponentially.
B) The airplane's rate increases linearly.
C) The airplane's rate is constant.
D) The airplane's rate decreases.
The questions seems to be lacking some information. By rate I'm going to assume position and in that scenario the answer would be B because the position function is modeled by a linear function.
