Algebra 2 Worksheet
#22 Algebra 2 Worksheet Name: _________________________
Combo on TEST 1.2 Concepts Period: ______
I. Solving Linear Systems Graphically. Solve each system by graphing on a graphing calculator.
|1. [pic][pic] |2. [pic] HINT: Adjust the window. |
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II. Solving Linear Systems Algebraically. Solve each system by the indicated method.
|3. [pic]; substitution |4. [pic]; elimination |
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|5. [pic]; your choice |6. [pic] ; your choice |
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III. Word Problems. Write a system to solve the word problem, but DO NOT SOLVE.
|7. Brian is 26 years older than his daughter Kim. The sum of their ages is|8. Suppose a movie theater sold 200 adult and student tickets for a showing|
|twice the differences of their ages. Find their ages. |with a revenue of $995. If the adult tickets were $5.50 and the student |
| |tickets were $4, how many of each type of ticket were sold? |
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IV. Compound and Absolute Value Inequalities. Solve and graph each inequality on a number line.
|9. [pic] OR [pic] |10. [pic] AND [pic] |
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|[pic] |[pic] |
|11. [pic] |12. [pic] |
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|[pic] |[pic] |
V. Absolute Value Equations. Solve each equation.
|13. [pic] |14. [pic] |15. [pic] |
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VI. Linear Regression.
|16. Graph the data in a scatter plot on your graphing calculator using the mean distance from the sun as your independent variable. |
|Planet |
|Mercury |
|Venus |
|Earth |
|Mars |
|Jupiter |
|Saturn |
|Uranus |
|Neptune |
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|Mean Distance from the sun (AU) |
|0.387 |
|0.723 |
|1.000 |
|1.523 |
|5.203 |
|9.541 |
|19.190 |
|30.086 |
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|Time of one revolution (yr) |
|0.241 |
|0.615 |
|1.000 |
|1.881 |
|11.861 |
|29.457 |
|84.008 |
|164.784 |
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|Correlation coefficient: __________ Line of Best Fit: ___________________________________ |
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|Predict the time of one revolution for Pluto if its mean distance from the sun is 39.507 AU. How accurate do you think your prediction is and WHY? |
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