Apakah cerun jika garisan secant fungsi y = 4x ^ 2 - 2x + 1 antara x = 3 dan x = 6?

Jawapan:

# "cerun" = 34 #

Penjelasan:

# "cerun garis secant adalah" #

# • warna (putih) (x) m = (f (6) -f (3)) / (6-3) #

# "itulah" "perbezaan dalam y" / "perbezaan dalam x" "antara 2 mata" #

#f (6) = 4 (6) ^ 2-2 (6) + 1 #

#color (putih) (xxx) = 144-12 + 1 #

#color (putih) (xxx) = 133 #

#f (3) = 4 (3) ^ 2-2 (3) + 1 #

#color (putih) (xxx) = 36-6 + 1 #

#color (putih) (xxx) = 31 #

# rArrm = (133-31) / 3 = 102/3 = 34 #