Page 177 - Algebra 1

5. Analyze On a coordinate plane, a student draws a graph of two parallel lines (25) perpendicular to the y-axis. Does the graph represent a function?
6. Identify the property illustrated by 3 · (9 · 5) = (3 · 9) · 5. (12)
*7. Automotive Safety The stopping distance d required by a moving vehicle is (25) dependent on the square of its speed s. Write a rule in function notation to
represent this information.
*8. A petting zoo contains 10 species of animals. The graph shows percentages of
(27) the 5 most numerous types of animals at the zoo. Give reasons why the circle graph may be misleading.
*9. Justify Is 4 a solution to the equation 5x + 8 - 3x + 4 = 20? Justify your (26) answer.
Petting Zoo
*10. The bar graph shows results of a taste test of four
(27) different brands of yogurt. True or False. Twice as many
people preferred Brand A over Brand D.
75 65 55 45
0
Ducks 20%
Cows 10%
Pigs 20%
Taste Test Results
Brand
A B C D
Goats 27%
Lambs 23%
*11. Analyze Using the set of data values 125,000, 105,000, 162,000, 112,000, and
(27) 148,000 without using a broken axis or very large intervals, how could a student
make a reasonably sized graph of the data?
*12. Production A company has 6 machines to produce parts (27) for its product. A manager uses the bar graph showing
the number of parts produced by each machine each day. What incorrect conclusions might the manager make about the efficiency of the machines?
*13. True or False: Large intervals on a scale can make
(27) changes in data appear less than they actually are. If false,
explain why.
*14. Multi-Step Three friends rented a kayak. It cost $4 per (26) hour per person to rent the kayak, plus $2 for each life
Machine Production
4200 4000 3800 3600 3400 3200
0
Brand
Brand
Brand
jacket, and $3 to park the car. It cost $57 in all. How many hours did they spend kayaking?
slant height h
*15. Geometry The formula for the surface area of a square pyramid is
(26) S = (4 · _1 bh) + b2. If the measure of b is 5 m, what is the largest slant
2
height possible for the total surface area to be no more than 150 m2?
162 Saxon Algebra 1
b
b
Machine 1 Machine 2 Machine 3 Machine 4 Machine 5 Machine 6
Number of Parts Produced