Page 283 - Algebra 1

19.
(34)
*20.
(35)
Generalize During the past 4 years you have grown 3 inches per year. a. Write a recursive formula that describes the sequence.
b. If you were 52 inches tall 4 years ago, how tall are you now?
c. Would you expect this pattern of growth to continue for a long time? Explain
your reasoning.
Find the x- and y-intercepts on the graph.
*21.
(36)
*22.
(38)
23.
(39)
24.
(37)
*25.
(39)
26.
(41)
Generalize A gerbil cage measures 24 inches by 10 inches by 18 inches. If you double the lengths of each side of the cage, how will this increase affect the volume of the cage?
Find the GCF of 14p5qr2 - 28p2q2r3.
_r _ _
Verify Show that -2 (rs-2 - s-3r-1 )= 0.
s-3 sr-1 r-3
Earth Science A grain of sand is approximately 0.002 meters in diameter. Write this
number in scientific notation.
Multiple Choice In the expression s + - n , which variable cannot
pg3 (g2p3 9p ___
)
s ApBgCsDn
42
equal 0? s
Fuel Efficiency The graph represents the amount of gasoline in a car’s tank and the
number of miles driven. What is the rate of change?
27.
(4 0)
Error Analysis Two students simplify the expression (34)2 as shown below. Which student is correct? Explain the error.
90
80
70
60
50
40
30
20
10
012345
Gallons
Student A
(34)2 = 34·2 = 38
Student B
(34)2 = 94·2 = 98
268
Saxon Algebra 1
8
y
4
O
x
-8
-4
-4
4
8
-8
Miles