# How do you evaluate #abs(15)-abs(-1)#?

14

The "absolute value" symbol, which encircles the numbers, has the effect of making any number it contains positive.

This implies that:

And that:

We can solve the equation from here:

Note:

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To evaluate ( |15| - |{-1}| ), simply calculate the absolute values:

( |15| = 15 )

( |{-1}| = 1 )

Then, subtract:

( |15| - |{-1}| = 15 - 1 = 14 )

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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.

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