Mortgage and Real-Estate Vocabulary Review

Term 1: Direct Variation
Definition 1: A mathematical relationship where the variable y changes proportionally to the variable x.
Term 2: Constant of Proportionality
Definition 2: The constant in a direct variation equation, represented by k in y = kx. It is the ratio of y to x.
Term 3: Inverse Variation
Definition 3: A mathematical relationship where the variable y changes proportionally to the inverse of the variable x.
Term 4: Constant of Inverse Proportionality
Definition 4: The constant in an inverse variation equation, represented by k in y = \frac{k}{x}. It is the product of x and y.
Term 5: Joint Variation
Definition 5: A mathematical relationship where a variable varies directly with multiple other variables.
Term 6: Combined Variation
Definition 6: A mathematical relationship incorporating both direct and inverse variations.
Term 7: y = kx
Definition 7: The equation representing direct variation, where k is the constant of proportionality.
Term 8: y = \frac{k}{x}
Definition 8: The equation representing inverse variation, where k is the constant of inverse proportionality.
Term 9: a = kbc
Definition 9: The equation representing joint variation of a with b and c, where k is the constant of proportionality.
Term 10: y = \frac{kx}{z}
Definition 10: The equation representing combined variation where y varies directly with x and inversely with z.