The domain and inverse of the function
is
Domain = 
,
What is a function?
A function from A to B is a rule that assigns to each element of A a unique element of B. A is called the domain of the function and B is called the codomain of the function.
There are different operations on functions like addition, subtraction, multiplication, division and composition of functions.
The given function is
r(x) is not defined if x - 4 = 0
r(x) is not defined for x = 4
Domain = ,
Where 
is the set of all real number
Let r(x) = y
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Answer: $0.20
Step-by-step explanation:
There are 16 ounces in 1 pound, so divide $3.20 by 16 to get the price of dollars/ounce
3.20/16 = $0.20/ounce
Answer:
0, 5, 8, 11
Step-by-step explanation:
(a)
f(0) → x = 0 in interval - 2 ≤ x < 1 , thus x³ , that is
0³ = 0 ⇒ f(0) = 0
(b)
f(1) → x = 1 in interval 1 ≤ x ≤ 4, thus 3x + 2, that is
f(1) = 3(1) + 2 = 3 + 2 = 5
(c)
f(2) → x = 2 in interval 1 ≤ x ≤ 4, that is
f(2) = 3(2) + 2 = 6 + 2 = 8
(d)
f(3) → x = 3 in interval 1 ≤ x ≤ 4, that is
f(3) = 3(3) + 2 = 9 + 2 = 11
