How would you describe the difference between the graphs of f (x) = x2 + 4 and

G (y) = y2 + 4?

They're the exact same, except for the variables.

Step-by-step explanation:

Since the variable can be any letter, it is the exact same equation but with different letters as x. Although the equation of G (y) has a y instead of x, you know y is the x and g (y) is the y because the y inside of the parentheses tells us that y is the independent variable.