From the table below, determine whether the data shows an exponential function. Explain why or why not. x 3 6 9 12 y 1 2 4 8 a. No; the domain values are at regular intervals. b. No; a different value is added to each range value. c. No; there is no relationship between the x value and its corresponding y value. d. Yes; the domain values are at regular intervals and the range values have a common factor