Question

Find the first three iterates of f(x)=x(3-x) if x0= -3 MULTIPLE CHOICE!

A. x1=-18, x2=-378, x3=-144018
B. x1=0, x2=0, x3=0
C. x1=-18, x2=-270, x3=-73710
D. x1=18, x2=-270, x3=-73710

Answer 1

My answer was C but its doesn't seem right

Answer 2

first one is -3 * (3- (-3))= -3*(3+3)= -3*6 = -18

so choice A or C

next one is -18* (3 - -18)= -18*(21)= - 378
that narrows it down to choice A. No need to figure out x3 (thank goodness)

Answer 3

Thanks so much I see my mistake now!