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# Sulpcegu5e ppt 11_1

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### Sulpcegu5e ppt 11_1

1. 1. Section 11.1 Systems of Linear Equations; Substitution and Elimination
2. 2. A movie theater sells tickets for \$9.00 each, with seniors receiving a discount of \$2.00. One evening the theater took in \$4760 in revenue. If x represents the number of tickets sold at \$9.00 and y the number of tickets sold at the discounted price of \$7.00, write an equation that relates these variables. Suppose that we also know that 600 tickets were sold that evening. Can you write another equation relating the variable x and y ?
3. 8. OBJECTIVE 1
4. 10. OBJECTIVE 2
5. 13. A movie theater sells tickets for \$9.00 each, with seniors receiving a discount of \$2.00. One evening the theater sold 600 tickets and took in \$4760 in revenue. How many of each type of ticket were sold?
6. 14. OBJECTIVE 3
7. 16. OBJECTIVE 4
8. 18. OBJECTIVE 5
9. 23. OBJECTIVE 6
10. 25. OBJECTIVE 7
11. 27. Find real numbers a , b , and c so that the graph of the quadratic function y = ax 2 + bx+ c contains the points ( – 2, 13), (0, 1) and ( – 2, 3).