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Day 13 Assignment: Systems Pt 2. 1. What is the x -coordinate of the solution to the system of linear equations below? 4 x + 5 y = 8 2 x − 3 y = −18 F −4 G −3 H 3 J 4. 2.
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1. What is the x-coordinate of the solution to the system of linear equations below? 4x + 5y = 8 2x − 3y = −18 • F −4 • G −3 • H 3 • J 4
2. A restaurant sold a total of 418 large and small hamburgers during one day. Total hamburger sales were $1077. Large hamburgers sold for $3, and small hamburgers sold for $1.50. Which system of linear equations can be used to find l, the number of large hamburgers sold, and s, the number of small hamburgers sold? Al+ s= 1077 C 1.50l + 3s = 418 3l + 1.50s = 418l+ s= 1077 B l+ s= 418 Dl+ s= 418 3l + 1.50s = 1077 1.50l + 3s = 1077
3. What is the y intercept of 12y = 144x – 36?
4. Which is the solution to this pair of linear equations? 5y − 2x = 6 3x − 2y = 13 • A (3, −2) • B (5, −2) • C (7, 4) • D (8, −4)
5. An investor has a total of 45 one-ounce ingots, made of either gold or silver, worth $7636.50. The value of a gold ingot is $280.00, and the value of a silver ingot is $4.25. Which system of equations can be used to find g, the number of gold ingots, and s, the number of silver ingots? A g− s= 45 C g+ s= 45 280.00g + 4.25s = 7636.50 4.25g + 280.00s = 7636.50 B g+ s= 45 D g− s= 7636.50 280.00g + 4.25s = 7636.50 280.00g + 4.25s = 45
6. Does the following list of points represent a function? ( -3,4)(-4,3)(-2,5)(0,3)(2,4)(1,6)(3,5)(1,9)(5,7)
7. Which of the following best represents the solution to the system of linear equations shown below? 3x − 8y = −19 6x + 3y = 22
8. What is a slope that is perpendicular to Y = 1/2x + 9? • ½ • 2 • -1/2 • -2
9. What is the solution to 3x+ 4y = 11 and 5x – 2y = 1 ?
11. A city bus collected $780 in fares on one day. The price of a regular fare was $0.80, and the price of a discount fare was $0.40. If a total of 1200 people paid the fares on this bus, how many paid the regular fare? • A 1000 • B 1950 • C 600 • D 750
12. Parallel Lines have what type of solution?