D f = ℝ and B f = [ -6.25 ; → ⟩
D g = ℝ and D g = [ -1.62 ; → ⟩
D h = ℝ and B h = ℝ
D k = [ 0 , → ⟩ and B k = [ 1 , → ⟩
x = 0 ∨ x = ± 1 2 2
D f = [ -2 , 2 ] × B f = [ -2 , 1 ]
D f = ⟨ ← ; -0.125 ] and B f = ⟨ ← , 0 ]
( -1 , 1 ) , ( 0 , 0 ) and ( 1 , 1 )
80 m after 4 s.
D h = [ 0 , 6 ] and B h = [ 0 , 80 ]
60 m
6.92 s
Because h is plotted against t
R = p ( 400 - 0.5 p )
p in [ 0 , 800 ]
R in [ 0 , 80000 ]
[ -1740 , 60 ]