Variables and Patterns Flashcards
Dependent Variable is…
One of the two variables in a relationship. It’s value depends upon or is determined by the other variable, called independent variable. (y-axis)
Example is the cost of trail mix (dependent variable) depends on how much you but which is independent variable.
Variable is…
a quantity that can change. Letter are often used as symbols to represent variables in rules or equations that describe patterns.
Income is…
The amount of money taken in.
Profit is…
The amount by which income is greater than expenses. (The money taken in after expenses have been paid)
Expression
A mathematical phrase containing number, variables, and operation symbols
Equations
A rule containing variables that represents a mathematical relationship. An example is the formula for finding the area of a rectangle, A=lw
Coefficient
The numerical factor in any term of an expression (21n- 21 is the coefficient)
Rate of change is…
The amount of change in the dependent variable produced by a given change in the independent variable.
