Transcript Glencoe Algebra 1

Content Standards
A.SSE.1a Interpret parts of an expression,
such as terms, factors, and coefficients.
A.SSE.2 Use the structure of an expression
to identify ways to rewrite it.
Mathematical Practices
4 Model with mathematics.
Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State
School Officers. All rights reserved.
You performed operations on integers.
• Write verbal expressions for algebraic
expressions.
• Write algebraic expressions for verbal
expressions.
• algebraic expression
• product
• variable
• power
• term
• exponent
• factor
• base
Write Verbal Expressions
A. Write a verbal expression for 8x2.
Answer: eight times x squared
Write Verbal Expressions
B. Write a verbal expression for y5 – 16y.
Answer: the difference of y to the fifth power and
16 times y
A. Write a verbal expression for 7a4.
A. 7 times a
B. 7 times the product of 4 and a
C. 7 times a to the fourth power
D. 4 times a to the seventh power
B. Write a verbal expression for x2 + 3.
A. the sum of 3 and x
B. the product of x squared and 3
C. the sum of x and 3 squared
D. the sum of x squared and 3
Write Algebraic Expressions
A. Write an algebraic expression for 5 less than a
number c.
The words less than suggest subtraction.
a number c
less
five
c
–
5
Answer: Thus, the algebraic expression is c – 5.
Write Algebraic Expressions
B. Write an algebraic expression for 9 plus the
product of 2 and d.
Plus implies add, and product implies multiply.
Answer: The expression can be written as 9 + 2d.
Write Algebraic Expressions
C. Write an algebraic expression for two fifths of
the area a.
The word of implies multiply.
A. Write an algebraic expression for nine more than
a number h.
A. 9 – h
B. 9h
C. 9 + h
D. h – 9
B. Write an algebraic expression for the difference of
6 and 4 times a number x.
A. 6 – 4x
B. (6 – 4) + x
C. 6 + 4x
D. 6x – 4
C. Write an algebraic expression for one half the size
of the original perimeter p.
A. 2p
B.
C.
p2
D. p
Write an Expression
ENTERTAINMENT Mr. Nehru bought two adult
tickets and three student tickets for the planetarium
show. Write an algebraic expression that
represents the cost of the tickets.
Let a be the cost of each adult ticket and c be the cost
of each student ticket. The cost of the adult tickets is
represented by 2a and the cost of the student tickets is
represented by 3c.
Answer: The cost of the tickets is represented by
2a + 3c.
MONEY Lorenzo bought a bag of peanuts that
cost p dollars and he gave the cashier a $20 bill.
Write an expression for the amount of change that
he will receive.
A. 20 – p
B. p – 20
C. 20 + p
D. 20  p