Two Olympic swimmers, Ryan and Michael, create unique ripple waves in the water. The function created by Ryan is f(x) = 4x2 + 7. The function created by Michael is f(x) = 4x2 - 5x + 3. Describe to Ryan and Michael, using complete sentences, which operation results in the largest degree function and which operation results in the smallest degree function. Show your work to justify your reasoning

I am wondering what x is. Both are second degree functions.