Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
AFDA Unit 1 Test Review Name__________ Use order of operations to simplify 1. (4 2) 2 3 2 2. 26 23 4 3. 8 2 3 14 7 4. 7 3 2 1 5. 5 (5 2 3 7) 1 6. 7. 13 42 6 8. 20 3 4 23 16 (4 2) 3 23 Evaluate using the following values for the variables: Let x 3 , y 5 , z 7 9. 10 y 2 x 10. x 18 7 y Evaluate using the following values for the variables: 11. x 2 y when x = 4 and y = 3 12. 2 y when y = 3 3 AFDA Unit 1 Test Review Name__________ Solve for x. 2 x2 3 13. 6 x 14 2 x 3 2 2 x 1 14. 4 15. 2x 4 x 5 16. x 4 3x 8 17. 3x 7 x 5 18. 2 (3) x 7 19. x5 4 x2 6 20. 5 4 x2 x 21. A snowstorm dumped 18 inches of snow in a 12-hour period. How many inches were falling per hour? 22. A certain horse can run 2 miles in 7 minutes. How long will it take the horse to run 5 miles? 23. Which is the better buy: a dozen cans for $3.50 or 18 cans for $4.25? AFDA Unit 1 Test Review Name__________ 1. Write the coordinates of each point. Plot each point in the coordinate plane. Then describe the location of the point. 2. Locations: A ________________ B_________________ C_________________ D_________________ 3. Solve for the indicated variable a) 3x 8r r for x b) x 3a 4b for a c) V For numbers 4-6, find the zeros and y-intercepts of the equations 4. -2x + 5y = 10 5. -4y + x = 8 6. 2y – 3x = -6 bh for b 3 AFDA Unit 1 Test Review Name__________ 4. x-int_______; y-int _______ 5. x-int_______; y-int _______ 6. x-int______; y-int _______ For numbers 7-9, find the slope of the line that passes through the points 7. (-5, -3) and (-1, 1) 8. (-1, -3) and (1, 3) 9. (1, 3) and (1, 5) For numbers 10-12, find the value of y, so that the line passing through the points has the given slope. 10. ( 0, y), (3, 6) m = ⅓ 11. (2, y), (3, 3), m = 6 12. (y, 5), (5, -1) m = -2 3 For numbers 13-15, draw the line that has the given intercepts 13. 14. 15. ** What is the slope??? ** What is the slope? ** What is the slope? For numbers 16-18, identify the slope and y-intercept of the line 16. y = 5x 17. 10x - 5y = 30 18. 2x + 2y = -6 m= m= m= AFDA Unit 1 Test Review b= Name__________ b= b= For numbers 19-21, write the equation in slope intercept form. 19. 2x + 5y = 10 20. -8x + 4y = -36 21. 6x - 9y = -18 For numbers 22-24, graph the equation of the line, then determine if the slope is positive, negative, zero, or undefined. 22. -3x – y = -5 23. 3y – 2x - 6 = 6 24. y = 4 y y x x Slope:______________ y Slope:_____________ x Slope: _____________ For numbers 25-28, given f(x) and g(x), evaluate the function for each indicated value f(x) = -4x2 – 3 25. Find x when f(x) = -19 g(x) = 0.5x + 2 26. Find g(4) 28. find x when h(x) = 16 Use the graph to answer the next two questions. 29. f(2) = ______ h(x) = -2(x – 1) + 4 27. Find f(1) – g(0) AFDA Unit 1 Test Review Name__________ 30. Select all possible x values if f(x) = -2 6 2 -6 4 -4 For numbers 31-32, find the domain and range of each.. 31. 32. 33. At 1:00, the water level at Washington –Lee pool is 13 inches. At 4:00, the water level is 28 inches. Find the rate of change of the increase per hour. 34. Drew opens a savings account with $75. He makes the same deposit every month, and makes NO withdrawals. After 3 months, he has $150. After 6 months, he has $300. After 9 months, he has $450. What is the rate of change? How much will he have after 1 year?? 35. Determine if each of the following relations are functions. Then FIND THE DOMAIN AND RANGE of each. a) b) c) Y N n d) Y Y N N n n e) Y N f) y x -1 -10 0 -6 2 2 3 6 Y N AFDA Y N n x -4 -2 0 -4 Unit 1 Test Review y 2 3 4 6 Name__________