1. Find a linear equation that can model the data shown in the graph. A. 2x -3y + 6 = 0 B. 3x - 2y + 6 = 0 C. 2x + 5y - 3 = 0 D. 2x + 3y + 6 = 0 Hint 2. Which is the graph of the inequality x > -2? A. B. C. D. Hint 3. If you use the elimination method to solve the system of equations 3x - 4y = 9 and 2x + 3y = 7, which of the following would be the best method?Method I: Multiply both sides of the first equation by 2, and multiply both sides of the second equation by 3. Then add the two equations.Method II: Multiply both sides of the first equation by 3, and multiply both sides of the second equation by 4. Then add the two equations. A. Both Method I and Method II are correct. B. Neither Method I nor Method II is correct. C. Method I D. Method II Hint 4. If you use the substitution method to solve the system of equations 3x - 2y = 4 and x + y = 5, which of the following would be the best method?Method I: Solve the second equation for x, and substitute 5 - y for x into the first equation.Method II: Solve the second equation for y, and substitute 5 - x for y into the first equation. A. Neither Method I nor Method II is correct. B. Method I C. Method II D. Both Method I and Method II are correct. Hint 5. In shipping, an oversize package is one in which the sum of the length and girth exceeds 100 inches, and also one whose length alone exceeds 70 inches. Which of the following best represents this situation? A. l + g < 100, g < 70 B. l + g > 100, g < 70 C. l + g > 100, l < 70 D. l + g > 100, l > 70 Hint 6. If you use the parent graph y = x2 as a reference, describe how you would graph y = -x2 - 3. A. Reflect the parent graph over the x-axis and then move the graph down 3 units. B. Reflect the parent graph over the y-axis and then move the graph to the left 3 units. C. Reflect the parent graph over the x-axis and then move the graph up 3 units. D. Reflect the parent graph over the y-axis and then move the graph down 3 units. Hint 7. Solve |x - 1| - 8 < 3. A. {x | -4 < x < 3} B. {x | 5 < x < 10} C. {x | -8 < x < 10} D. {x | -10 < x < 12} Hint 8. In a polynomial equation, if there is one change in sign of the coefficients of the terms, ____. A. there could be one or three positive real zeros B. there is exactly one positive real zero C. there is one imaginary root D. none of the above is correct Hint 9. Which is not a true statement about the properties of the graph of y = cos x? A. The y-intercept is 1. B. The period is 2. C. The x-intercepts are located at , where n is an integer. D. The maximum values are y = 1 and occur when , where n is an integer. Hint 10. If csc = 2, find sin . A. B. C. 2 D. Hint 11. A ship leaving port sails for 100 miles in a direction 40° north of due east. Find the magnitude of the vertical and horizontal components. A. about 87 miles; about 50 miles B. about 64 miles; about 77 miles C. about 50 miles; about 87 miles D. about 77 miles; about 84 miles Hint 12. For the equation , find the coordinates of the foci of the ellipse. A. B. C. D. Hint 13. Write an equation in general form of y = x2 - x + 5 for T(1, -2). A. x2 + 3x - y + 5 = 0 B. x2 - 3x + y + 5 = 0 C. x2 - 3x - y + 5 = 0 D. x2 - 3x - y - 5 = 0 Hint 14. Simplify . A. 3|s|t4 B. 3s2|t|3 C. 3s2|t|5 D. 9s2|t|5 Hint 15. The maximum cost of Ana's long-distance plan is \$5.00 each month plus \$0.10 per minute.Name a combination of minutes and cost that fit this inequality. A. (15,10) B. (10,15) C. (6,10) D. (10, 6) Hint 16. Solve the system of 3 equations by substitution.x = 3y + 2z2x + 3y + 2z = 3-x + y - z = 6 A. (8, 4, -2) B. (1, 3, -4) C. infinite solutions D. no solution Hint 17. Which is the graph of y ? A. B. C. D. Hint 18. Which best describes this graph? A. inverse variation B. none of these C. joint variation D. direct variation Hint 19. Which of the following is the graph of the equation 4 = -r cos ( - 58°)? A. B. C. D. Hint 20. Which of the following is not a cube root of -3 + 3i? A. -1.56 + 0.42i B. 1.14 +1.14i C. -1.14 - 1.14i D. 0.42 - 1.56i Hint