Survey

Survey

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5.1– 5.2 Quiz Progress Check Match the system of linear equations with the corresponding graph. Use the graph to estimate the solution. Check your solution. (Section 5.1) 1. y = x − 2 1 3 y = − —x + 1 y = −2x + 1 A. B. y Ź1 Ź3 y = 4x + 5 C. y 1 Ź5 Ź4 Ź3 Ź2 1 2 3. y = —x − 2 2. y = x − 3 y 3 3 2 1 x 1 Ź3 Ź2 Ź1 x 2 Ź1 3 x Ź4 Ź2 Ź5 Ź3 Solve the system of linear equations by graphing. 4. y = 2x − 3 5. 6x + y = −2 y = −x + 9 y = −3x + 1 1 2 3 (Section 5.1) 6. 4x + 2y = 2 3x = 4 − y Solve the system of linear equations by substitution. Check your solution. (Section 5.2) 7. y = x − 8 y = 2x − 14 8. x = 2y + 2 2x − 5y = 1 9. x − 5y = 1 −2x + 9y = −1 10. MOVIE CLUB Members of a movie rental club pay a $15 annual membership fee and $2 for new release movies. Nonmembers pay $3 for new release movies. (Section 5.1) a. Write a system of linear equations that represents this situation. b. When is it beneficial to have a membership? 11. NUMBER SENSE The sum of two numbers is 38. The greater number is 8 more than the other number. Find y each number. Use a system of linear equations to justify your answer. (Section 5.1) ice 12. VOLLEYBALL The length of a sand volleyball court is twice d its width. The perimeter is 180 feet. Find the length and width of the sand volleyball court. (Section 5.2) 13. MEDICAL STAFF A hospital employs a total of 77 nurses and doctors. The ratio of nurses to doctors is 9 : 2. How many nurses are employed at the hospital? How many doctors are employed at the hospital? (Section 5.2) Sections 5.1– 5.2 MSCC3_BLUE_PE_05MC.indd 215 Quiz 215 12/8/12 9:54:50 AM