• Addition Property of Equality: Adding the same number to each side of an equation
produces an equivalent expression.
• Constant of proportionality: The constant value of the ratio of two proportional
quantities x and y; usually written y = kx, where k is the constant of proportionality. In a
proportional relationship, y = kx, k is the constant of proportionality, which is the value of
the ratio between y and x.
• Dependent variable- A variable that depends on other factors. For example, a test score
could be a dependent variable because it could change depending on several factors such
as how much you studied, how much sleep you got the night before you took the test, or
even how hungry you were when you took it.
• Direct Proportion (Direct Variation): The relation between two quantities whose ratio
remains constant. When one variable increases the other increases proportionally: When
one variable doubles the other doubles, when one variable triples the other triples, and so
on. When A changes by some factor, then B changes by the same factor: A=kB, where k is
the constant of proportionality.
• Division Property of Equality: States that when both sides of an equation are divided by
the same number, the remaining expressions are still equal
• Equation: A mathematical sentence that contains an equal sign
• Independent variable: A variable that stands alone and isn't changed by the other
variables you are trying to measure. For example, someone's age might be an independent
variable.
• Inequality: A mathematical sentence that contains the symbols >, <, ≥, or ≤.
• Inverse Operation: A mathematical process that combines two or more numbers
such that its product or sum equals the identity.
• Multiplication Property of Equality: States that when both sides of an equation are
multiplied by the same number, the remaining expressions are still equal.
• Proportion: An equation which states that two ratios are equal.
• Solution: the set of all values which, when substituted for unknowns, make an
equation true.
• Substitution: the process of replacing a variable in an expression with its actual
value.
• Subtraction Property of Equality: States that when both sides of an equation have the
same number subtracted from them, the remaining expressions are still equal.
• Term: A number, a variable, or a product of numbers and variables.
• Variable: A letter or symbol used to represent a number or quantities that vary.
No comments:
Post a Comment