Svar:
#color (grøn) (3x + y = 310 "er standardformen for ligning" # #
Forklaring:
# (x_1, y_1) = (73,13), (x_2, y_2) = (94,4) #
#color (rød) ("Ligningens ligning er" (y-y_1) / (y_2-y_1) = (x-x_1) / (x_2-x_1) #
# (y - 13) / (4-13) = (x - 73) / (94-73) #
# ((y-13) / -cancel (9) ^ farve (rød) (3)) = ((x-73) / annuller (21) ^ farve (rød)
#y - 91 = -3x + 219 #
#color (grøn) (3x + y = 310 "er standardformen for ligning" # #
