



Unit 5 Vocabulary
logarithm: The power to which a base, such as 10, must be raised to produce a given number. If nx = a, the logarithm of a, is x; Inverse: The function obtained by switching the X and Y variables in a function. The inverse function of is . Change of Base Formula: Direct Variation: A relationship between 2 variables in which one is a constant multiple of the other. Inverse Variation: A relationship between two variables in which the product is a constant. When one variable increases the other decreases in proportion so that the product is unchanged. 