Find the Domain y^2-6y-10x-56=0
Problem
Solution
Identify the type of equation. This is a quadratic equation in terms of
y and a linear equation in terms ofx which represents a parabola opening horizontally.Isolate the term containing
x to expressx as a function ofy
Solve for
x by dividing both sides by10
Determine the domain. In the context of a function
x=ƒ(y) the domain refers to the possible values of the independent variabley Since the expression forx is a polynomial iny there are no restrictions such as division by zero or square roots of negative numbers.Conclude that
y can be any real number. In interval notation, this is(−∞,∞)
Final Answer
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