Writing Algebraic Expressions
What is the sum of b and 9?
b + 9
How many terms are listed below...
8x+19y-7-2x+13
5 terms
What is a variable? What does it represent?
A letter that represents an unknown quantity.
What is 32 divided by g?
Keyword: Divided
What operation does the fraction bar mean?
Example: 4/7
Division
What is 12 decreased by p?
12 - p
NAME the coefficients below...
7a+8-9b+8c-10
7, -9, 8
Definition: A number that stands by itself.
Constant
What is 24 decreased by x?
Keyword: Decreased
Multiplication
15 less than g
g - 15
List the coefficients and constants...
9h-7r+4-23j+13
Coefficients: 9, -7, -23
Constants: 4, 13
What are terms separated by?
s more than 2
Keyword(s): more than
Twice a number
Multiplication
There are 28 students attending basketball tryouts. Only x will be chosen. How many students will be not chosen?
28 - x
If a variable is by itself, what number automatically goes in front of it?
Example: a + 8
The number 1
What operation is associated with coefficients?
Multiplication
Example: 4y (4 times y)
What happens to the 9 and e in the expression?
9 less than e
It flips: e-9
The quotient of a number and seven
Division
Milo earns $13 per hour at his new job. Use "h" for the variable.
13h
Spot the mistake:
4x-9y+3-14z+6y-7x-12
Terms: 4x, -9y, 3, -14z, 6y, -7x, -12
Coefficients: -9, 14, 6, -7
Variables: x, y, z
True or False:
The 7 in 7x is a constant
False. It is a coefficient
4 larger than a
Keyword(s): larger than
The total of 6 and x
Addition