If the function f (x) 4x ^ 2-mx + 5 is an increasing function on the interval [- 2, + ∞), then f (1) has a range of values

If the function f (x) 4x ^ 2-mx + 5 is an increasing function on the interval [- 2, + ∞), then f (1) has a range of values

F (x) = 4x ^ 2-mx + 5 is an increasing function on the interval [- 2, + ∞)
Axis of symmetry x = m / 8
m/8