For $$y=a\left(b\right)^x+k$$ , how does adding a constant "k" transform the parent function?

How has the function $$y=7\left(3\right)^x-5$$ been transformed from the parent function  $$y=7\left(3\right)^x$$ ?

How has the function $$-5\left(3\right)^x$$ been transformed from the parent function  $$5\left(3\right)^x$$ ?

What is the y-intercept of the function $$y=4\left(5\right)^x?$$  

What is "a", the initial value, for the function: f(x) = 300(1.16)^x?

$$f\left(x\right)=3^x\ \ \ \ and\ \ \ g\left(x\right)=5\left(3\right)^x$$  
What transformation has taken place from the parent function to g(x)

What type of function is y=7(5)^x