2. 1. Function or Not a Function?

3. 2. Write the closed (explicit) model of the sequence: 3, 7, 11, 15, 19

4. 3. Give the domain of the function.

5. 4. Give the range of the function.

6. 5. Calculate the rate of change from (4, 8) to (6, 12).

7. 6. Calculate the average rate of change from x 1 =2 to x 2 =3.

8. 7. Find the first 5 terms of a n = n 2 – 2. -1, 2, 7, 14, 23

9. 8. Write the recursive formula of the following sequence... 5, 11, 17, 23, 29 a n =a n-1 +6 where a 1 =5

10. 9. Find f(3) from the graph. 9

11. 10. If f(x) = 2x 2 + 3x -7, find f(-3) 2

12. 11. Describe the End Behavior

13. 12. Given f(x) = 3x + 4 and g(x) = 6x Find f(x)g(x) f(x)g(x) =18x 2 + 24x

14. 13. The explicit formula for a geometric sequence is a n = 4(2) n-1, find the 6 th term: 128

15. 14. What is the explicit form for this geometric sequence? 5, 15, 45….? Y=5(3 x-1 ) You must use “x-1” since 5 is the first term and would otherwise be counted twice

16. 15. What is the y- intercept of Y=5(3 x ) ? (0, 5)

17. 16. How would you transform y = 3 x to get y = -3 x ? Reflect over the x-axis

18. 17. Even, Odd, or Neither? Even – symmetrical over y-axis

19. 18. Even, Odd or Neither? Odd – rotational symmetry – 180 degrees around origin

20. 19. Even, Odd or Neither? Neither – it is reflect over x = 2 not the y- axis

21. 20. Which is the better deal at 20 years? You get $4 this year (year zero) and it doubles every year OR you get $1500 this year and add $1000 each year. At year 20, you will have $4,194,304 from option 1. At year 20, you will have $21,500 from option 2. Option 1 is a much better deal! Equations: and

22. What is the equation for the graph shown?

24. A new house has a value of $250,000. It is appreciating at a rate of 5% per year. What is the equation to represent this and what is the value of the house in 10 years? $407,223.66

25. HOMEWORK Study for Test Use your Unit 4 part A test, Unit 4 quizzes and review sheet to help you! There are textbook pages that will be helpful – they are on the back of the Agenda.