Biggest is all nine's
smallest is 1 then zeroes
greatest
999999
smallest
10000
It would be equivalent to 18099
Answer: 
a=-3
b=-9
Step-by-step explanation:

Answer:
infinite
Step-by-step explanation:
Answer:
f^-1(x) = ( x + 6 )/4
Step-by-step explanation:
f(x) is the same as...y = 4x + 6....and then try to make x the subject of formula
y + 6 = 4x
x = (y + 6)/4....then when writing f^-1(x)...replace y with x
f^-1(x) = ( x + 6 )/4