Svar:
Forklaring:
# "siden" h (x) "er en lineær funktion" #
# "lad" h (x) = økse + b #
#rArrh (f (x)) = a (3x + 1) + b #
#COLOR (hvid) (rArrh (f (x))) = 3AX + a + b #
.
# RArr3ax + a + b = 6x-1 #
#color (blue) "sammenlign koefficienter med lignende vilkår" #
# RArr3a = 6rArra = 2 #
# A + b = -1rArr2 + b = -1rArrb = -3 #
#rArrh (x) = ax + b = 2x-3 #