Page 403 - Algebra 1

*12. Geometry The length of a rectangular pool is four times the width. A
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four-foot-wide deck surrounds the pool. Write a polynomial expression for the area of the pool and deck. Use the Distributive Property and write your answer in standard form.
4 ft
x ft
4x ft
*13. Multi-Step Henry has a game that includes a number cube. The side length of the (58) cube is (5x + 1) inches. Find the volume of the number cube.
a. Find the area of the base. Multiply the length times the width.
b. Find the volume by multiplying the product found in part a by the height.
Measurement Tim has a garden in the shape of a right triangle. The triangle has a (58) base of 6x2 + 8x + 12 feet and a height of (x - 1) feet. What is the area of Tim’s
3 4 *14.
(x - 1) ft
15. Find the product of 4x(x2 + 2x - 9).
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garden?
16. Write an equation of the line in slope-intercept form. The slope is 2; the (49) y-intercept is -1.
17. What is the degree of 12x4x3 + 6xy + 41x2y3? (53)
18. Baseball The percentage of games won is used to determine a team’s standing in
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*19. Estimate The cost of a chain is directly proportional to its length. Use the
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(6x2 +8x+12)ft
the league. In the American League, the following percentages were recorded:
0.604, 0.540, 0.505, 0.465, 0.380, 0.600, 0.584, 0.505, 0.446, 0.430, 0.580, 0.545, 0.475, 0.451
Make a box-and-whisker plot of these percentages and determine if there is an outlier.
graph to estimate the cost of a chain that is 18 inches long.
60 40 20
0
20. Multiple Choice Which point represents the same direct variation as (3, -9)?
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A (4,-8) B (4,-7) C (4,-12) D (4,-16)
388 Saxon Algebra 1
4 8 12 16
Length of Chain (in.)
Cost of Chain ($)