Find the Domain y=7x+9

Problem

y=7*x+9

Solution

1. Identify the type of function. The given equation y=7*x+9 is a linear function, which is a specific type of polynomial function.

2. Check for restrictions. For a function to have a restricted domain, there must be operations that are undefined for certain values of x such as division by zero or taking the square root of a negative number.

3. Determine the domain. Since there are no denominators containing x and no radicals with even roots, the function is defined for all real numbers.

4. Express the domain in interval notation. The set of all real numbers is represented as (−∞,∞)

Final Answer

Domain: *(−∞,∞)

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