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Algebra 2. Practice Item Guide April 2012 18 questions. NEW Directions for logging into TestNav. You must be on a Broad Run Computer . Login: SOL Password: SOL Domain: Elem Start – Programs Choose – subject & test to practice. TECHNOLOGY-ENHANCED ITEM TYPES.
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Algebra 2 Practice Item Guide April 2012 18 questions
NEW Directions for logging into TestNav • You must be on a Broad Run Computer. • Login: SOL • Password: SOL • Domain: Elem • Start – Programs • Choose – subject & test to practice
3. HINT: Graph & compare. (Remember parenthesis!)
4. HINT: Graph! (Remember parenthesis!)
5. HINT: Graph! (Remember parenthesis!)
6. HINT: Stat-Edit (Enter data). Stat-Plot (determine shape). Stat-Calc pick matching regression type.
7. HINT: Multi-step! N = 968 x-bar = 108 sigma = 11 x = 125 P(z>1.55) = 1 - .9394 (table lookup) = .0606 Final answer is probability times #data points = 968 * .0606 = 58.66
8. HINT: Distributive – you distributed Commutative – you Changed Order Associative – you associated the middle # with the last #
9. 47 HINT: Use logic! a1 = 8 a2 = 2(8) + 5 = 21 a3 = 2(21) + 5 = 47
10. HINT: Find graph with same y-value (range!). Graph & compare!
11. HINT: Think of the question as: Describe the x-values (intervals) where the graph is going up. Then just graph and look!
12. HINT: Graph and look! Think “HOY VUX”. Horizontal (HOY): y = 4 Vertical (VUX): x = 3
13. HINT: Committees = Combinations! 3C1 * 7C2 = 63
14. HINT: Same logic as #11. Think of the question as: Describe the x-values (intervals) where the graph is going up. Then just graph and look!
15. HINT: Must find the % of data first. 23750/50000 = .475 = 47.5% Empirical rule: Pick the 2 sections to the right (or left) of the mean.
16. HINT: Zeros = x-intercepts! Graph. 2nd Calc zero x = 2.5
17. HINT: Graph!
18. HINT: Substitute. 5x -4(x2-x-6) – 11 = 0 Distribute, factor, set factors to zero. OR graph y = 5x -4(x2-x-6) – 11 and find x-intercepts once you are already equal to zero!