Algebra 2 TEST 1
Algebra 2 SIX WEEKS TEST Review
Graph the number line for each interval notation.
|1. [pic] or [pic] |2. [pic] or [pic] |
| | |
|[pic] |[pic] |
Simplify.
|3. [pic] |4. [pic] |5. [pic] |
| | | |
| | | |
| | | |
|Evaluate each expression given [pic] and [pic]. |Yes or No? Do the following represent a function? And give the domain and range |
|6. [pic] |8. [pic] |9. |
| | |[pic] |
|7. [pic] |10. |11, |
| |[pic] |[pic] |
|Find[pic] for each function. | |
|12. |13. [pic] |15. Find the rate of change. |
|[pic] | |[pic] |
| | |[pic] |
| | |[pic] |
| | |[pic] |
| | |[pic] |
| | | |
| | |[pic] |
| | |[pic] |
| | |[pic] |
| | |[pic] |
| | |[pic] |
| | | |
| |14. [pic] |16. Is Number 15 linear? Why? Or Why Not? |
Solve.
|17. [pic] |18. [pic] |19. [pic] |
Write the equation of each line in slope-intercept form.
|20. line passing through [pic] and with a slope |21. line passing through [pic] and [pic] |22. the line (a) parallel and (b) perpendicular |
|of [pic] | |to the line [pic] and passing through [pic] |
|23. Graph the line [pic] using its intercepts. |24. Graph the inequality [pic]. |
|[pic] |[pic] |
IX. Word Problems.
|25. Emma’s cell phone plan charges her a $76 fixed fee plus $0.16 per |26. If 80% of the 600 seniors take math at Bowie, how many seniors are in |
|minute over her allowed 1000 minutes. If her bill was $104, how many extra |math? |
|minutes did she use? | |
Linear Regression.
|27. Given the data, find… |
| |
|Years Cell Phones In Use |
|1 |
|4 |
|6 |
|12 |
|14 |
|17 |
| |
|Number of cell phones thousands |
|52 |
|151 |
|221 |
|497 |
|556 |
|604 |
| |
| |
|the correlation coefficient |
|an equation for the line of best fit |
|a prediction for the number of cells phones for 26 years in use. |
|Predict the years in use given 1200 (thousands) cell phones. |
Solve each absolute value equation or inequality and check! (Remember, each problem has 2 parts.)
|28. [pic] |29. [pic] |30. [pic] |
Linear Systems.
|31. Is [pic] a solution to the system? [pic] |32. Solve the system by substitution. |
| |[pic] |
|33. Solve the system by elimination. |34. Solve the system by elimination. |
|[pic] |[pic] |
|35. Solve the system by use of a calculator. |
|[pic] |
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