What exponential function is the best fit for the data in the table? x f(x)2 -33 04 12A. f(x) = 4(4)^x - 1 + 4B. f(x) =4(4)^ x - 1 - 4C. f(x) = 1/4(4)^x -1 + 4D. f(x) = 1/4(4)^ x - 1 - 4
Accepted Solution
A:
Answer: The correct answer is choice D.
There are multiple ways to get to the right answer. You could plot the points on a graphing calculator. Then, graph each function to determine which equation matches the points.
You could also input the x values and see which equation produces the y values in the chart.
On thing to notice is the we have negative output values, there we need to pick either B or D, so the values go beneath the x-axis.