Was ist f (x) = int x - 3, wenn f (2) = 3 ist?

Was ist f (x) = int x - 3, wenn f (2) = 3 ist?
Anonim

Antworten:

#f (x) = (x ^ 2) / 2-3x + 7 #

Erläuterung:

#f (x) = intx-3 dx #

# = (x ^ 2) / 2-3x + c #

Subbing in 2, #f (2) = ((2) ^ 2) / 2-3 (2) + c = 2-6 + c = -4 + c #

Schon seit #f (2) = 3 #, # -4 + c = 3 #

# c = 7 #

#:. f (x) = (x ^ 2) / 2-3x + 7 #