1. CFA # 4 Review

2. If the growth rate of the housing market over the past 10 years has been periodic, which type of function could be used to create a formula showing the growth rate over time?
A – Polynomial function
B – Logarithmic function
C – Trigonometric function
D – Exponential function
Answer: C

3. Answer: B

4. Know what the graph of sine, cosine, tangent, arcsine and arccosine look like

5. If f(x) is a polynomial function and f(c) = 0, then which of the following is true?
A c is the maximum
B c is the minimum
C x-c is a factor of f(x)
D c is the y-intercept
Answer: C

6. Answer: A

7. What are the steps to finding the inverse of a function?
Switch the x and y variables and solve for the new y
If you switch your x and y values and the new table no longer is a function then the function does not have an inverse function.

9. Answer: B

10. Answer: B