Vocab
A symbol, usually a letter, that represents one or more numbers
Variable
Evaluate: 3+x
when x=5
8
three less than a number p
p-3
In the expression 3x+8, 8 is the...
constant
a part of a mathematical expression, separated by addition or subtraction symbols
term
A term without a variable, it never changes
constant
evaluate 3d-4
when d=10
26
2x
In the expression 3x+8, x is the...
variable
to replace(substitute) the variable with given values(numbers) and then simplify using the order of operations
evaluate
In math it means the "opposite"-it will undo an operation
inverse
Evaluate d + 20/2
when d=6
16
a number r and four more
r+4
In the expression 3x+8, 3 is the...
coefficient
the number that contains a variable
coefficient
A mathematical sentence stating that two expressions are equal. (has an equal sign)
Equation
Evaluate x2+10
When x=5
35
a number c, squared, plus 2 more
c2+2
What are the terms in 3x+8?
3x and 8
What operation does quotient mean?
division
a combination of numbers, operations, and variables that can be evaluated for a given value of the variable
algebraic expression
when t=3
5
2(y+8)
What is the coefficient in 25t-7
25
What operation does twice mean?
multiplication (times 2)