Bradley P. answered 03/07/18
Tutor
New to Wyzant
Math Tutor (Prealegebra to Calculus 1&2)
Here are a few off the top of my head that have a maximum value of 4 and a y intercept of 4:
- y = 4
- y = 4cos(x)
- y = -x^2 + 4 (substitute x^2 with x^4, x^6, x^8, ...)