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 k in this function

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.