Page 363 - Algebra 1

Lesson Practice
A trainer made a box-and-whisker plot of the number of seconds her clients could stand on a balance pod. Use the interquartile range to identify outliers.
Number of Seconds on Balance Pod
20 30 40 50 60 70
Make a box-and-whisker plot to display the data of scores on some state tests: 411, 507, 387, 475, 507, 477, 484, 605, 496, 504, 529, 585, 459, 586, 508, 589. Half the tests are between which scores?
A coach records the number of yards run by his players. 1, 22, 18, 34, 37, 89, 44, 43, 19, 28, 27, 23, 19, 21
Display the data using a box-and-whisker plot. Identify any outliers.
The populations of the 17 largest U.S. cities in 2005 are listed in millions.
0.7, 2, 0.9, 2.8, 1.5, 0.7, 1.3, 0.8, 0.7, 0.6, 0.8, 1.2, 3.8, 1.5, 0.7, 8.1, 0.9
d. Identify any outliers. (Ex 4)
e. Use a graphing calculator to make a box-and-whisker plot of this data (Ex 4) with and without the outlier. Which plot represents the data better?
Distributed and Integrated
a.
(Ex 1)
b.
(Ex 2)
c.
(Ex 3)
Hint
Don’t forget to first put the numbers in order from least to greatest.
Practice
Solve each equation. Check your answer.
_1+_3x-5=10_1 282
0.02x-4-0.01x-2=-6.3 x - 5x + 4(x - 2) = 3x - 8
Simplify.
1.
(26)
2.
(24)
3.
(28)
4.
(38)
*6.
(4 0)
7.
(41)
5. ( - ) 2x (39) d -3 4 b-2
2x2 -10x b2 db-2 3f-3d2 _ ___
Chemistry Avogadro’s number is represented by 6.02 × 1023. Writing this number as a product, which value would have to be in the exponent of the expression (6.02 × 1015)(10-)2 ?
Multi-Step The formula to convert degrees Fahrenheit to degrees Celsius is C=_5(F-32).
9
a. On a separate sheet of paper, make a table of the equivalent Celsius
temperature to -4, 32, 50, and 77 degrees Fahrenheit. b. Use the table to make a graph of the relationship.
c. Find the slope of the graph.
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Saxon Algebra 1