Which set of ordered pairs could be generated by an exponential function?Which set of ordered pairs could be generated by an exponential function? mc002-1.jpg,

Question

Which set of ordered pairs could be generated by an exponential function?
mc002-1.jpg, (0, 0), mc002-2.jpg, (2, 1)
(–1, –1), (0, 0), (1, 1), (2, 8)
mc002-3.jpg, (0, 1), (1, 2), (2, 4)
(–1, 1), (0, 0), (1, 1), (2, 4)

Answer 1

Correct me if I'm wrong, but the sets of points are

(–1, –1), (0, 0), (1, 1), (2, 8)

(–1, 1), (0, 0), (1, 1), (2, 4)

 

Well, it's definitely not the second set of points.  Exponential functions are monotonic (either always increasing, or decreasing).  In the second set, the function has decreased from (-1,1) to (0,0), and then increased from (0,0) to (1,1).

 

Process of elimination.