Chapter 2 Vocabulary Flashcards
dimensional analysis
The process of carrying a unit
throughout a calculation.
equivalent equations
Equations that have the same solution.
formula
An equation that states a rule for the
relationship between certain quantities.
identity
An equation that’s true for every value of the variable.
multi-step equations
Equations that contain more than one variable.
percent of change
An increase or decrease written as
a percent.
proportion
An equation that states how two
equations are equal.
rate
When the ratio of two values have
different units of measure.
ratio
A comparison of two values by
division.
scale model
A model that’s used to represent an
that is too great or small in size to be drawn to scale
solve an equation
The process of finding all values of a variable that make an equation true.
unit rate
The ratio of two quantities in which the second part has one unit.
weighted average
the sum of the product of the number of units and the value per unit divided by the sum of the number of units, represented by M.
