# How do you find the distance between points (3,-3), (7,2)?

##### 2 Answers

#### Answer:

#### Explanation:

Use the distance formula:

If we let

#### Answer:

The distance between points (3,-3), (7,2) is

That is

#### Explanation:

Use the distance formula which is derived from the Pythagorean Theorem.

They did it here:

http://www.purplemath.com/modules/distform.htm

We have points (3,-3), (7,2):

Then:

See how squaring gets rid of those nasty negatives?

Too bad we *cannot* take the roots of the two terms without adding.

To check, compare this