1 Point
Which of the following is the range of the function f (x) = x3 + 4 ?
(−∞, 4)
(4, ∞)
(−∞, ∞)
(−∞, 4]
[4, ∞)
Q2
1 Point
Let g(x) = 3x + 7. Find the average rate of change of g on the interval [2, 6].
3
Q3
1 Point
6x + 3
Find the limit of h(x) = as x → ∞.
3x − 5
2
, Q4
1 Point
f
Find the domain of if...
g
1. The domain of f is [4, 9), f (6) = 0, and f (x) > 0 for x =
6.
2. The domain of g is [−1, 8], g(5) = 0, and g(x) > 0 for x = 5.
(−∞, ∞)
[−1, 9)
[4, 8]
[−1, 6) ∪ (6, 9)
[4, 5) ∪ (5, 8]
[−1, 5) ∪ (5, 6) ∪ (6, 9)
[4, 5) ∪ (5, 6) ∪ (6, 8]
Q5
1 Point
Let f (x) = x3 + 4. Find f −1 (3). If f is not invertible, write DNE instead of a
number.
-1