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It is normally regarded as an equation, where y is a function of x. It is possible to regard it as a boolean expression (the equality is true or false).

Q: Is y equals x plus 3 a function?

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Give the domain for

Only if it's a function.

A cubic function, continuous, differentiable.

x equals 8

x equals 4

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Give the domain for

Only if it's a function.

A cubic function, continuous, differentiable.

x = 0

x equals 8

9

First of all, if 'x' is 3, then 'x' doesn't equal -3x+3 . You must mean y = -3x + 3.If x=3, then (-3x + 3) = -6 .The graph is the point (3, -6) .

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

If 2x + 3y = 4, y= (4 - 2x)/3. In function notation, f(x) = (4 - 2x)/3.

Yes.

Yes.

No, that is a equation.