## anonymous one year ago The point A(-2, 3) is translated using T: (x,y) → (x + 4, y + 2). What is the distance from A to A'? 2 5 2

1. anonymous

Square root of 6 2 squared 2 5 or 2 squared 5

2. MrNood

if you move the point (-2,3) by adding 4 to the x value, and 2 to the y value what is the new point?

3. anonymous

2,5 ?

4. anonymous

2 sqaured 5?

5. MrNood

(2,5) is the new point (but that does not give th e answer) slow down a little

6. MrNood

|dw:1435090282297:dw|

7. MrNood

|dw:1435090347709:dw| So what is the length of each of the black lines?

8. anonymous

9. anonymous

4 and 2? are thouse the lengths

10. MrNood

yes - So you can see a right angle triangle: |dw:1435090449711:dw| What is the length of the long side?

11. anonymous

do i square 4 and 2 and get 20 when added up?

12. anonymous

and 2 squared 5 when simplified

13. MrNood

it is $\sqrt{20} =\sqrt{4*5} = \sqrt{4} * \sqrt{5} = 2$

14. anonymous

Okay, thanks

15. MrNood

sorry - last term should be $2\sqrt{5}$