PreAP Algebra 2 Unit 4 Practice and Review
 1. Solve for x please: (((0.07x^{2/3})^{3})^{4}) + 11 = 21 (express answer to 2 decimal places)
 2. Determine the locator point of y = 5(x + 11)^{2}  30 (express your answer as a data point, with parentheses)
 3. Determine the locator point of y = 6x^{2} + 48x + 211 (express your answer as a data point, with parentheses)
 4. Determine the locator point of y = 5^{x3} + 10 (express your answer as a data point, with parentheses)
 5. What is the locator point of an exponential function called?
A) Launch point B) Asymptote C) Inflection point D) Vertex
 6. What is the locator point of a cubic called?
A) Center B) Inflection point C) Launch point D) Vertex
 7. What is the locator point of a hyperbola called?
A) Center B) Launch point C) Inflection point D) Vertex
 8. Determine the locator point of: y = 5.2/(x  19) 3 (express your answer as a data point, with parentheses)
 9. Determine the locator point of: y = 144/(2x + 21)  1 (express your answer as a data point, with parentheses)
 10. How many xintercepts will y = 3x^{2} + 7x + 11 have?
A) 1 B) 2 C) 4 D) 0
 11. How many xintercepts will y = 25x^{2}  1000x + 10000 have?
A) 1 B) 0 C) I'm c! D) 2
 12. In a geometric sequence, t(7) = 6 and t(10) = 7986. Find t(14).
 13. Determine the locator point of y = 3^{x + 11}  1 (express your answer as a data point, with parentheses)
A) (11, 1) B) (11, 0) C) (11, 1) D) (11, 0)
 14. You have $4321 in the bank where it has been earning 6.2% interest compounded quarterly. How much did you have exactly 7 years ago? (express answer to the nearest dollar)
A) $2790 B) $2809 C) $2836 D) $2761
 15. Determine the locator point of y = 7x^{2} + 224x (express your answer as a data point, with parentheses)
 16. Determine the xintercept of: y = 6(x + 5)^{3}  257.25 (express your answer as a data point, with parentheses)
 17. Determine the xintercept of: y = 4^{x3}  32 (express your answer as a data point, with parentheses)
 18. What is the range of: y = 17^{2x + 13} + 5
A) y≥5 B) 5 < y < 5 C) y=5 D) y E R E) y>5
 19. Rewrite in graphing form: y = (2x  11)(2x + 15) (include y= in your answer, use the ^ for exponent)
 20. Find the yintercept of: y = 18.2(x + 4.3)^{2}  11.4 (express your answer as a data point, with parentheses, include all decimals)


Answer Key
1. 40.49 2. (11, 30) 3. (4, 115) 4. (3,11) 5.A 6.B 7.A 8. (19, 3) 9. (10.5, 1) 10.B 11.A 12. 116923026 13.D 14.B 15. (16, 1792) 16. (1.5, 0) 17. (5.5, 0) 18.E 19. y=4(x+1)^2 169 20. (0, 325.118)