Functions can be defined using words, symbols, graphs, tables, or sets of ordered pairs, but in each case the parts are the same. The domain is the input, the independent value—it’s what goes into a function. The range is the output, the dependent value—it’s what comes out.

Definitions The domain is the set of all values for the independent variable. These are the first coordinates in the set of ordered pairs and are also known as input values. The range is the set of all values for the dependent variable.

The set of all possible values of the independent variable of a function is called the domain. The set of all possible values of the dependent variable of a function is called the range.

The domain is the set of all input values for the dependent variable. b. The set of input values for the independent variable is called the range.

The domain variable (x) is referred to as the independent variable. The range variable (y) is referred to as the dependent variable. Usually function notation is used to represent a relation which is a function.

1 Answer. None of the two, actually. However, the domain is related to the independent variable, as it is the set of all the “permitted” values for the independent variable to assume.

Theoretically, the domain is all positive whole numbers but due to the lifespan of humans, the domain is more likely to be all positive whole numbers below 100. The range will all positive numbers since the amount you have saved should be positive and there can be decimals when talking about money.

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How do you figure out if a relation is a function? You could set up the relation as a table of ordered pairs. Then, test to see if each element in the domain is matched with exactly one element in the range. If so, you have a function!

The domain is the set of all “x” values and the range is set of all “y” values in a set of ordered pairs. Remember that ordered pairs are written as (x, y). Repeated values within the domain or range don’t have to be listed more than once.

The pair of elements that occur in particular order and are enclosed in brackets are called a set of ordered pairs….For example:

1. Ordered pairs (x, y) and (2, 7) are equal if x = 2 and y = 7.
2. Given (x – 3, y + 2) = (4, 5), find x and y. Solution:
3. Given (3a, 3) = (5a – 4, b + 1)

The domain of the relation is the set of all possible first coordinates. When we graph, we think of the first coordinate in terms of x . The range of the relation is the set of all possible second coordinates.