1-1 Solve It!
Consider the population of Florida, the area of Colorodo, and the flight
time from Philadelphia to San Francisco. Which of these have a value
that varies? Explain.
Can the number of
states in the United
States vary?
San Francisco
Philadelphia
CO
FL
M
1-1 Lesson Quiz
1. What is an algebraic expression for each word phrase?
a. 16 more than a number n
b. 22 less than a number n
c. 3 times a number n
d. the quotient of a number n and 12
2. What is an algebraic expression for each word phrase?
a. 11 more than twice a number x
b. 2 less than the quotient of 5 and a number x
c. the product of 4 and the sum of a number x and 8
3. What word phrase can you use to represent the algebraic
expression 7x?
4. Do you UNDERSTAND? The table shows
Hours
how the cost of hiring a plumber depends
on how long the work takes. What is a rule
for the total cost? Give the rule in words
and as an algebraic expression.
0004_hsm11a1se_0101.indd 4
Cost
1
$65
2
$90
3
$115
4
$140
5
$165
Answers
Solve It!
Answers may vary. Sample: The
area of Colorado is one number.
The flight time from Philadelphia
to San Francisco is many
different numbers since weather
affects flight time. The
population in Florida is many
numbers since some people only
live there in the winter.
Lesson Quiz
1. a. n 1 16
b. n 2 22
n
c. 3n
d. 12
2. a. 11 1 2x
5
b. x 2 2
c. 4(x 1 8)
3. the product of 7 and a
number x
4. Multiply the number of hours
by 25 and add 40; 25x 1 40
Prentice Hall Algebra 1 • Solve It/Lesson Quiz on Transparencies
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4/15/09 4:49:10 PM