# Is {(-1,2),(7,1)(0,-3)} a function?

Yes, {(-1,2),(7,1),(0,-3)} is a function.

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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.

- The length of a rectangle is 7 feet larger than the width. The perimeter of the rectangle is 26 ft. How do you write an equation to represent the perimeter in terms of its width (w). What is the length?
- How do you evaluate the function #h(x)=7-2/3x# for h(15)?
- What is #1/3# divided by 4?
- How do you simplify #-10div5*2+8*(6-4)-3*4#?
- How do you simplify 4 + 12/2 - 3 * 2?

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