Page 1 of Translate to an algebraic expression. The translation is. 2. Use the intercepts to graph the equation.

Transcription

1 1. Translate to an algebraic epression. The product of % and some number The translation is. (Tpe the percentage as a decimal. Use to represent some number.) 2. Use the intercepts to graph the equation. Use the graphing tool to graph the line. Use the intercepts when drawing the line. If onl one intercept eists, use it and another point to draw the line. 3. Use the distributive propert to help ou solve the equation. w (w ) Page 1 of 17

2 4. Graph the sstem of inequalities. Use the graphing tool on the right to graph the sstem of inequalities. 5. Find the slope and the -intercept. f() The slope is. The -intercept is 6. Determine whether (, ) is a solution of. Is (, ) a solution to the equation? 7. Find the slope, if it eists, of the line containing the pair of points. (, ) and (, ) The slope m =. (Simplif our answer. Tpe an integer or a fraction. Tpe N if the slope is undefined.) Page 2 of 17

3 8. Find the domain of the function. p() What is the domain of p? 9. Solve. Then graph. Choose the correct solution. Choose the correct graph of the solution. Page 3 of 17

4 10. Graph the line containing the given pair of points and find the slope. (, ), (, ) Use the graphing tool on the right to graph the line. Make sure to use the two given points when graphing the line. Find the slope of the line. m = (Simplif our answer. Tpe an integer or a fraction. Tpe N if the slope is undefined.) 11. Collect like terms. 12. Solve. The solution is. (Simplif our answer. Tpe an inequalit smbol; then tpe an integer or a decimal.) 13. Solve. The solution is. (Tpe an integer or a fraction.) Page 4 of 17

5 14. Graph the equation and identif the -intercept. Use the graphing tool on the right to graph the equation. The -intercept is. (Tpe an ordered pair.) 15. Solve using the multiplication principle. Don't forget to perform a check. The solution is. (Simplif our answer. Tpe an integer or a fraction.) 16. Solve using the addition and multiplication principles. < The solution set is { }. (Tpe an inequalit smbol, then tpe an integer or a fraction.) Page 5 of 17

6 17. Determine the slope of the line shown at the right. Find the slope of the line. m = (Simplif our answer. Tpe an integer or a fraction. Tpe N if the slope is undefined.) 18. Solve. Choose the solution to the inequalit. > or 19. Simplif. Page 6 of 17

7 20. Graph the inequalit on a plane. Use the graphing tool on the right to graph the inequalit. 21. Plot (, ) on the coordinate aes. Use the graph on the right to plot the point (, ). 22. Evaluate. for and (Simplif our answer.) Page 7 of 17

8 23. Solve. Then graph. > The solution is { }. Which of the following is the graph of the solution? 24. Decide whether the pair of lines is parallel, perpendicular, or neither. The lines are 25. Solve. The solution is. (Simplif our answer. Tpe an integer or a fraction.) Page 8 of 17

9 26. Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at miles per hour and train B is traveling at miles per hour. Train A passes a station at If train B passes the same station at, at what time will train B catch up to train A? When will train B catch up with train A? 27. Solve b the elimination method. What is the solution of the sstem? r r s s (Tpe an ordered pair. Tpe an integer or a fraction. Tpe N if there is no solution. Tpe I if there are infinitel man solutions.) 28. On three consecutive passes, a football team gains ards, loses ards, and gains ards. What number represents the total net ardage? The total net ardage is ards. 29. Find the slope, if it eists. m (Simplif our answer. Tpe an integer or a fraction. Tpe N if the slope is undefined.) Page 9 of 17

10 30. Solve the sstem of equations b graphing. Then classif the sstem as consistent or inconsistent and as dependent or independent. What is the solution of the sstem of equations? Is the sstem consistent or inconsistent? Are the equations dependent or independent? 31. Find the indicated outputs for f(). f( ) f( ) f( ) Page 10 of 17

11 32. In, the life epectanc of males in a certain countr was ears. In, it was ears. Let E represent the life epectanc in ear t and let t represent the number of ears since. The linear function E(t) that fits the data is E(t) t. (Round to the nearest tenth.) Use the function to predict the life epectanc of males in. E( ) (Round to the nearest tenth.) 33. is % ; is %. How man of each should be mied together in order to get - that is %? How man of the should be in the miture? How man of the should be in the miture? 34. Find the domain of the function. g() Choose the correct domain below. Page 11 of 17

12 35. The of a rectangle is fied at cm. What will make the perimeter greater than cm? The must be greater than cm. 36. Use < or > to make the statement true. 37. Solve the following sstem of equations. (1) (2) What is the solution of the sstem? (Tpe an ordered pair. Tpe N if there is no solution.) 38. Solve using the multiplication principle. Don't forget to perform a check. The solution is =. Page 12 of 17

13 39. The equation can be used to predict the number of gun deaths in the United States ears after 2000, that is, corresponds to 2000, corresponds to, corresponds to, and so on. Predict the number of gun deaths in and. In what ear will the number of gun deaths be? The predicted gun deaths in will be. The predicted gun deaths in will be. The predicted number of gun deaths will be in the ear. 40. Graph the equation. Use the graphing tool on the right to graph the equation. Page 13 of 17

14 41. Graph on a number line, where is a real number. Choose the graph of <. < 42. % of what number is? The answer is. 43. Multipl. (Tpe an integer or a simplified fraction.) 44. Solve b the elimination method. What is the solution of the sstem? (Tpe an ordered pair. Tpe an integer or a fraction. Tpe N if there is no solution. Tpe I if there are infinitel man solutions.) 45. Solve. 8 ( + ) = The solution is =. Page 14 of 17

15 46. Find the coordinates of the point shown on the graph. What are the coordinates of the point? (Tpe an ordered pair.) 47. The function H described b can be used to predict the height, in centimeters, of a woman whose humerus (the bone from the elbow to the shoulder) is cm long. Predict the height of a woman whose humerus is cm long. The predicted height of a woman whose humerus is cm long is cm. 48. Solve b the substitution method. What is the solution of the sstem? (Tpe an ordered pair. Tpe N if there is no solution.) 49. Am paid $ for a pair of running shoes during a %-off sale. What was the regular price? The regular price was $. (Round to the nearest cent, if necessar.) 50. Solve. < The solution is { }. (Tpe an inequalit.) Page 15 of 17

16 51. Graph the equation using the slope and the -intercept. Use the graphing tool to graph the line. Use the slope and -intercept when drawing the line. 52. Solve using the multiplication principle. > The solution set is { }. (Tpe an inequalit smbol and a fraction.) 53. Determine if the graph is a function. Is this the graph of a function? Page 16 of 17

17 54. Use the intercepts to graph the equation. Use the graphing tool to graph the line. Use the intercepts when drawing the line. If onl one intercept eists, use it and another point to draw the line. 55. Solve for the indicated letter. The solution is., for 56. charges $ for and $ /month for. The equation describes the total cost, c, of operating a Media Services phone for t months. Choose the correct graph of the equation. The total cost for $. months of service is If a customer has onl $ available, how man months of service can she receive? Page 17 of 17