1. What type of relationship is shown by the scatter plot? A. positive B. both positive and negative C. negative D. no relationship Hint 2. Determine whether a scatter plot of data comparing a homeowner's height and the height of the trees in his or her yard would show a positive, negative, or no relationship. A. not enough information given B. no relationship C. negative D. positive Hint 3. The function f(n) = 2.65n + 28.9 estimates the height in inches for a boy who is n years old. Choose values for n and graph the function. A. B. C. D. Hint 4. The graph of the line y = -4x A. passes through the point (1, 4) B. passes through the point (2, 8) C. passes through the point (0, 0) D. passes through the point (-4, -4) Hint 5. The fifth term of a geometric sequence is . The common ratio is . Find the first term. A. 10 B. 8 C. 11 D. 9 Hint 6. Find the 10th term of the sequence 4, 7, 10, 13,…. A. 34 B. 28 C. 37 D. 31 Hint 7. Copy and complete the function table to find the function values of {-2, -1, 0, 1, 2} for f(n) = 3n + 2. A. f(-2) = -8, f(-1) = -5, f(0) = 2, f(1) = 5, f(2) = 8 B. f(-2) = -4, f(-1) = -1, f(0) = 2, f(1) = 5, f(2) = 7 C. f(-2) = -4, f(-1) = -1, f(0) = 0, f(1) = 5, f(2) = 8 D. f (-2) = -4, f (-1) = -1, f (0) = 2, f (1) = 5, f(2) = 8 Hint 8. Find f if f(n) =n +. A. f= B. f= C. f= 2 D. f= 1 Hint 9. Find the solution of the system y =x + 2 and y = -1x + 4. A. B. C. (-2, 7) D. (1, 3) Hint 10. Find the slope of the line that passes through U(5, -2) and V(-1, -2). A. -1 B. 0 C. 1 D. undefined Hint 11. Find the slope of the line that passes through K(-1, 7) and T(-1, -3). A. undefined B. 2 C. 5 D. 0 Hint 12. Graph y = x + 1 using the slope and y-intercept. A. B. C. D. Hint 13. A long-distance phone company charges \$5 per month and \$0.10 per minute. The total bill y for the month can be represented by the equation y = 0.10x + 5. The graph of the equation is shown. Describe what the slope and y-intercept represent. A. The slope resents the number of minutes used. The y-intercept represents the monthly charge. B. The slope represents the cost per minute. The y-intercept represents the monthly charge. C. The slope represents the monthly charge. The y-intercept represents the cost per minute. D. The slope represents the total bill. The y-intercept represents the cost per minute. Hint 14. Solve the system y = x + 3 and y = x – 1 by graphing. A. (-2, 2) B. no solution C. (8, 7) D. (4, 5) Hint 15. Graph y 2x – 1. A. B. C. D. Hint 16. Mario must finish his science and German homework during the next 35 minutes. Which graph represents the number of minutes Mario can spend on each subject? A. B. C. D. Hint