Vocabulary
2^2=
4
4+3*6=
22
What is a constant in an expression?
The number by itself without a variable.
Translate the following expression.
7 increased by x.
7+x
What is the definition of the word "variable"?
Variable is a symbol, usually a letter, that stands for an unknown number.
8^2=
64
20-:4*7=
35
What is the coefficient of an expression?
The coefficients are numbers attached to the variables.
Translate the following expression.
The product of y and 9.
9y
What does the acronym PEMDAS stand for?
Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction
3^3=
27
34-(4+6)*2=
14
What are the variable terms in the following expression?
(3x-5+7y)
3x and 7y
Translate and evaluate the following expression.
The quotient of x and 7.
x=42
x-:7
42-:7=6
What are the criteria for algebraic expression.
2. No equal sign.
3. There should be a math operation.
5^4=
625
4*7+(6^2-24)-:3=
32
What are the constants in the following expression?
x^2-45+3z*7y+32
45 and 32
Translate and evaluate the following expression.
7 deducted from y.
y=12
y-7=
12-7=5
Explain why 3+9=12 is not an algebraic expression.
This is an equation because it has an equal sign, and there is no variable.
12^3
1728
36+(42-2^5)-:5*12=
60
What are the coefficients in the following expression?
(45a-3t-23)
45 and 3
Translate and evaluate the following expression.
8 less than twice y.
y=6
2y-8=
2(6)-8=4