Unit 2 Quiz
Q1. Arithmetic/Geometric Sequences
Find the function in explicit form (a
0
+ dn) if a
3
= 6 and a
7
= 22
-6 + 4n
4 - 6n
-2 + 3(n - 1)
4 - 2(n - 1)
Q2. Linear Regression Model
Find the MOST appropiate linear regression model.
Q3. Inverse Functions
Does √(x - 3) have an Inverse? If so, why? And what is the inverse function
No, √(x - 3) does not have an inverse
Yes, becasue the function is one-to-one. f
-1
(x) = x
2
+ 3
Yes, becasue the function is not one-to-one. f
-1
(x) = x
2
+ 3
Yes, becasue the function is one-to-one. f
-1
(x) = x
2
- 3
Q4. Exponential Functions
Sodium-24 has a half-life of 15 hours. In a particular sample, the amount of Sodium-24 remaining after h hours can be modeledby the function S given by S(h) = A
0
(0.5)
(h/15)
, where A
0
is the amount of Sodium-24 in the sample at time h = 0. which of the following function L models the amount of Sodium-24 remaining after d days, where A
0
is the amount of Sodium-24 in the sample at time d = 0? (h = 24d)
L(d) = A
0
(0.5)
(d/24)
L(d) = A
0
(0.5
(1/24)
)
(15d)
L(d) = A
0
(0.5
(1/24)
)
(d/15)
L(d) = A
0
(0.5
24
)
(d/15)
Q5. Semi-Log Plot Graph
Which graph looks linear on a Semi-Log Plot Graph
Linear
Logarithmic
Exponential
Quadratic