Question

Hi!
This question says
Joe is thinking of o function machine.He says that the output is 12 if the input is 4.what are 2 rules that he could be thinking of for his function machine?( I would really be grateful if you helped me)
;)thanks

Answer 1

Think of what you could do to 4 to turn it into 12

- could multiply it by 3 ---> y = 3x
-could add 8 to it -------> y = x+8
-could double it then add 4 --- y = 2x + 4
-could take 1/2 of it then add 10 --> y = (1/2)x + 10
etc.