11-1 Solve It!
Get more volume
for your surface
area. That’s
efficient packaging.
Which box uses less cardboard per cubic
inch of space inside it? Justify your
in
a
answer. (Hint: How would comparing a box’s
ssurface area to its volume help you answer
tthis question?)
4 in.
5 in.
6 in.
3 in.
4 in.
5 in.
11-1 Lesson Quiz
x21
1. What is the simplified form of 3x 2 3 ? State any excluded
values.
2x 2 8
2. What is the simplified form of 2
? State any excluded
x 2 16
values.
25 2 x2
3. What is the simplified form of 2
? State any
x 2 x 2 20
excluded values.
4. The length of a rectangle can be represented by
the expression x 1 6. If the area of the rectangle is
2x2 1 8x 2 24, what is the expression for the width of the
rectangle?
5. Do you UNDERSTAND? What is an expression that simplifies
2
to 5 , with excluded values x 2 3 and x 2 23?
Answers
0652_hsm11a1seNA_1101.indd 652
2/17/09 2:51:43 PM
Solve It!
Lesson Quiz
The box with dimensions 4 in.
by 6 in. by 5 in.; explanations
may vary.
1. 1
,x21
3
2
2. x 1
, x 2 4, x 2 24
4
2x 2 5
3. x 1 4 , x 2 5, x 2 24
4. 2x 2 4
5. Answers may vary.
Sample:
2x2 2 18
5x2 2 45
Prentice Hall Algebra 1 • Solve It/Lesson Quiz on Transparencies
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