Antwoord:
Uitleg:
# "de helling van de secanslijn is" #
# • kleur (wit) (x) = m (f (6) -f (3)) / (6-3) #
# "dat is" "verschil in y" / "verschil in x" "tussen de 2 punten" #
#f (6) = 4 (6) ^ 2-2 (6) + 1 #
#color (wit) (xxx) = 144-12 + 1 #
#color (wit) (xxx) = 133 #
#f (3) = 4 (3) ^ 2-2 (3) + 1 #
#color (wit) (xxx) = 36-6 + 1 #
#color (wit) (xxx) = 31 #
# RArrm = (133-31) / 3 = 102/3 = 34 #