How do you know if y=3x+2 is a function?

Answer 1

To determine if ( y = 3x + 2 ) is a function, we need to ensure that each input (value of ( x )) corresponds to exactly one output (value of ( y )). We can use the vertical line test: if a vertical line intersects the graph of the equation at more than one point, then the equation does not represent a function. In the case of ( y = 3x + 2 ), since every ( x ) value produces a unique ( y ) value, the equation represents a function.

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Answer 2

It's not.

#y=3x+2# is not a function. Rather, it is just a regular linear equation. However, #f(x)=3x+2# is a function, because it contains "#f(x)#."
So, in general, if it contains "#y#," then you are safe in assuming that it is an equation. If it contains "#f(x)#," then you are safe in assuming that it is a function.

I hope that was helpful.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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