For the given options, we will find the function that has the greatest rate of change as x approaches infinity
![\begin{gathered} a)f(x)=2x-8 \\ b)g(x)=5x^2-x+7 \\ c)h(x)=4^x-6 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/ccmc20hyd8hj837wd9wii2uw60s3356xwu.png)
The first function is a linear
The second function is quadratic
The third function is exponential
By reviewing the graph of the three functions, we can know that the exponential function has the greatest rate of change as x approaches infinity
So, the answer will be option C) h(x)