Final answer:
For very large values of x, exponential functions will have the greatest y-values. As x gets larger, the exponential term b^x will grow rapidly, causing the y-values to also increase rapidly.
Step-by-step explanation:
For very large values of x, the function with the greatest y-values will be an exponential function.
Exponential functions have the form y = a * b^x, where a and b are constants.
As x gets larger, the exponential term b^x will grow rapidly, causing the y-values to also increase rapidly.