1. The math scores, x, and chemistry scores, y, for six students are given in the table. Use a graphing calculator to find the Pearson product-moment correlation. A. about 0.74 B. about 0.68 C. about 0.71 D. about 0.65 Hint 2. Which is the graph of the inequality y |x - 3|? A. B. C. D. Hint 3. The graph |y| = 4 - |2x| is symmetric with respect to __________. A. both the x-axis and the y-axis B. the x-axis C. the y-axis D. neither the x-axis northe y-axis Hint 4. A family has a monthly net pay N which is 70% of their gross monthly pay G. They decided to subtract their monthly food allowance of \$350 from their monthly net pay and invest 5% of the remainder. Write an equation for the investment each month I, given the above restrictions. A. I = 0.05(0.7G - 350) B. I = 0.95(0.7G - 350) C. I = 0.95(0.3G - 350) D. I = 0.05(0.3G - 350) Hint 5. If y varies jointly as the square of x and the cube of z and y = 9 when x = 3 and z = 4, find y when x = 8 and z = 5. A. 40 B. 45 C. 125 D. 100 Hint 6. Determine the zeros of the function y = x3 + 2x2 - 5x - 6. A. -3, -1, 4 B. -1, 2, 3 C. -3, 2, 0 D. -3, -1, 2 Hint 7. Solve . A. 3 B. 2 C. 0 D. 1 Hint 8. Write north latitude 44° 10' 26" as a decimal rounded to thenearest thousandth. A. 44.174° B. 44.172° C. 44.177° D. 44.173° Hint 9. Express as a trigonometric function of an angle in Quadrant I. A. B. C. D. Hint 10. Write parametric equations of y = -2x + 5. A. x = t and y = 2t - 5 B. x = -2t + 5 and y = t C. x = t and y = -2t + 5 D. x = t and y = 2x - 5 Hint 11. Convert log5 145 to a natural logarithm. A. B. C. ln 145 - ln 5 D. ln 5 - ln 145 Hint 12. Write as a fraction. A. B. C. D. Hint 13. Write the equation of the line that is parallel to 2x - 3y - 15 = 0 and that passes through the point (3,4). A. 2x - 3y + 6 = 0 B. 2x + 3y + 6 = 0 C. 2x - 2y + 6 = 0 D. 2x + 5 - 3 = 0 Hint 14. The image of after Rot180 · Ry-axis is the same as which other reflection, if the vertices are A(1,1), B(2,6), C(6,4)? A. none of these B. reflection over the line y = x C. reflection over the y-axis D. reflection over the x-axis Hint 15. Use matrices to determine the coordinates of the image of with vertices A(-3,4), B(-5,2) and C(-6,5) once it is rotated 90°. A. A'(-4,-3), B(-2,-5) and C'(-5,-6) B. A'(3,4), B(5,2) and C'(6,5) C. A'(-3,-4), B(-5,-2) and C'(-6,-5) D. A'(3,-4), B(5,-2) and C'(6,-5) Hint 16. Determine the slant asymptote for f(x) = . A. y = x + 3 B. y = 4 C. y = x + 4 D. y = -x + 3 Hint 17. Solve + 1 = 2 sin x for all real values of x. A. + 2k B. k C. + k D. + 2k Hint 18. Identify the graph of the equation 4x2 +3xy + 6y2 - 6 = 0 then find to the nearest degree. A. parabola; B. hyperbola; - 28° C. circle; -56° D. ellipse; - 28° Hint 19. Find the sum of the first seven terms of the geometric series Round to the nearest hundredth. A. 11.56 B. 3.24 C. 18 D. 17.33 Hint 20. Write a sequence that has two geometric means between -6 and A. B. C. D. Hint