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What is the domain of a function for y equals x plus 2 divided by x minus 5?
Wiki User
∙ 11y ago
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Ted Haley
Wiki User
∙ 11y agoThe domain of a function is the range of input values it can take for a given variable. For the function
y = (x+2)/(x-5),
the domain is the range of values that x can take. In this case, x can take any real value except 5. If x = 5, then y= 7/0 and is thus undefined. Using set notation to express this, we would say
{x??, x?5},
i.e. x is an element of the set of real numbers, x is not equal to 5.
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