Question

From the table below, determine whether the data shows an exponential function. Explain why or why not.


x
3
1
-1
-3
y
1
2
3
4

Answer 1

a.
No; the domain values are at regular intervals and the range values have a common sum 1.
b.
No; the domain values are not at regular intervals.
c.
Yes; the domain values are at regular intervals and the range values have a common factor 2.
d.
Yes; the domain values are at regular intervals and the range values have a common sum 1.