1. The table below shows the cost of some apples. Which function C(a) is represented in the table?
Apples
Cost
3
$1.95
6
$3.90
9
$5.85
A. C(a) = 0.65a
B. C(a) = 1.95a
C. C(a) = 3a
D. C(a) = 0.85a
2. Which function below translates the parent function f(x) = x4 five units to the right and seven units downward?
A. g(x) = (x – 7)4 – 5
B. g(x) = (x – 5)4 + 7
C. g(x) = (x – 5)4 – 7
D. g(x) = (x + 5)4 – 7
3. Use the mapping shown to show the value of the function f(x) at each point.
A. f(5) = –1, f(3) = 0, f(5) = 1, f(11) = 2, f(21) = 3
B. f(1) = 5, f(0) = 3, f(1) = 5, f(2) = 11, f(3) = 21
C. f(–1) = 5, f(0) = 3, f(1) = 5, f(2) = 21, f(3) = 11
D. f(–1) = 5, f(0) = 3, f(1) = 5, f(2) = 11, f(3) = 21