guys, i really need help on this! so i was given a equation as

y=3/4[ -2/5 (x+3)]^3 + 1

so far, i understand that the parent function is y= x^3

and i understand that the ys are all ways outside which is (vertical)

and the xs are always inside (horizontal)

i don't understand what do u do with the y-values mb and the x-value mb , which is the 3/4 = y and the -2/5 = x , overall i am really confuse on how to graph it.. have any tips on what to do, or a webpage to show me? thanks!!!!!