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The domain can be anything you like as long as it excludes the point x = -40.The range is the set of all values that y can take for the values of x in the domain of your choice.

Q: What is the domain and range of y equals x divided by x plus 40?

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It depends on the domain but, if the domain is the real numbers, so is the range.

Domain : set of all reals Range: set of all reals

The domain and range of Y = 1.3x + 8 are both [-infinity, +infinity]

The domain and range of the equation y = 2x+8 are both [-infinity,+infinity].

(2x+3) / 5 Domain = All Real Numbers Range = All Real Numbers

Related questions

The range depends on the domain.

The domain and range are both [-6, +6].

It depends on the domain but, if the domain is the real numbers, so is the range.

Domain : set of all reals Range: set of all reals

The domain and range of Y = 1.3x + 8 are both [-infinity, +infinity]

The range depends on the domain and conversely.

The domain and range of the equation y = 2x+8 are both [-infinity,+infinity].

If the domain is the real numbers then so is the range.

Y = x squared -4x plus 3 is an equation of a function. It is neither called a domain nor a range.

(2x+3) / 5 Domain = All Real Numbers Range = All Real Numbers

The answer depends on the domain for x. For example, if the domain is x = 7, then the range is 55. If the domain is all Real numbers, then the range is y >= 6.

If the domain is the set of real numbers, so is the range.