julie001 2 years ago How many units apart are the points (4, -3) and (-4, 3)?

1. waterineyes

Use: $\large Distance = \sqrt{(x_2 - x_1)^2+ (y_2 - y_1)^2}$ $\large x_2 = -4, x_1 = 4, y_2 = 3, y_1 = -3$ Plug in the values and find the distance..

2. julie001

0?

3. waterineyes

You are not taking care of negative signs.. $Distance = \sqrt{(-4-4)^2 + (3 - (-3))^2}$

4. waterineyes

-4 -4 = -8 and: 3 - (-3) = 3 + 3 = 6

5. julie001

so 2 ?

6. waterineyes

How??

7. waterineyes

I think I have put square above the brackets in the formula. You have to square them first and then add them..

8. julie001

9. waterineyes

10. julie001

1 got 100

11. waterineyes

Yes right.. Now take the square root of 100 ??

12. julie001

50

13. waterineyes

$$\sqrt{100} = 50 ??$$

14. waterineyes

Do you know what is square root ??

15. julie001

im rite?

16. julie001

10

17. waterineyes

Yes now you are right.. Well Done . That is the distance between them..