Find the Domain 2x+2y

Problem

2*x+2*y

Solution

1. Identify the type of function. The expression ƒ(x,y)=2*x+2*y is a linear polynomial function of two variables.

2. Determine any restrictions. Polynomials are defined for all real numbers because there are no denominators that could be zero, no square roots of negative numbers, and no logarithms of non-positive numbers.

3. State the domain. Since there are no restrictions on the input values for x or y the domain consists of all ordered pairs (x,y) in the two-dimensional real plane.

Final Answer

Domain={(x,y)|x∈ℝ,y∈ℝ}

Want more problems? Check here!