Page 507 - Algebra 1

19. Multiple Choice A is a graph made up of separate, disconnected points. (71) A discrete graph B continuous graph C trend graph D linear graph
20. Determine if the inequality symbol in the expression -_2 c ≤ 6 needs to be (70) reversed, and then solve. 3
21. If a square measures √ 14 4 inches on one side, what is the perimeter of the square? (69)
22. Determine the probability of rolling a sum of 9 or an odd number with two (68) number cubes.
23. Multi-Step The library charges a late fee based on the number of days a book is (67) overdue. The equation for the fee is y = $0.25d + $0.05.
a. What is the fee for a book that is 10 days overdue?
b. Thirty days is the maximum number of days for which the library charges.
What is the maximum amount the library charges?
c. Classify the system of equations for the library fee and y = $7.55.
24. Justify If a, b, x, and y are all greater than 0 and x > a and y < b, how does (66) _x compare to _a ? Justify your answer.
yb
*25. Predict Use the trend line to predict the corresponding y-value for an x-value of 40. (71)
26. Justify True or False: The lines represented by y = _x - 2 and 4y = x + 8 are (65) 4
parallel. Explain.
27. Construction To build Ariane’s house will take a constant number of individual
(64) work days. If a construction crew of 15 people can build the house in 20 days, how
many people does it take to finish the house in 5 days?
28. Multi-Step A container has a square base. The area is 800 cm2. The size of a book is (61) 25 cm by 30 cm. Can the book lie flat on the base of the container?
a. Find the side length of the container.
b. Compare the side length with the dimensions of the book. c. Use the comparison to determine if the book will fit.
29. Solve the system by substitution: 3x + y = 13.
8
y
6
4
2
x
1
0
2
0
3
0
4
0
(59)
2x - 4y = 4
30. Sue purchases a rectangular billboard sign for her new business. The length can (58) be represented by 6x2 + 6x + 6 and the width is (x + 8). What is the area of Sue’s
new billboard?
492 Saxon Algebra 1