f(x) = (x - 4)^2 - 5
Vertex (4 , -5)
This function opens upward and has min. value = -5
So range y >= - 5
So answer is A. -5 <= f(x) < ∞
Answer:
Step-by-step explanation:
V = (l)(w)(h)
V = (x)(x)(20-x)
V = x²(20-x)
V = -x³ + 20x²
75