Explain how to write 50,000 using exponents

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)1/n+c what does the graph tell you about the value of n in this function

At which value in the domain does f(x) =0?