Answer:
4
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
The max/ min of the function is the value of k
f(x) = (x - 2)² + 4 ← is in vertex form
with (h, k) = (2, 4 ) → k = 4
Thus minimum occurs at 4
