## malibugranprix2000 2 years ago Find the distance d(p1, p2) between the points p1, p2. p1=(4,-4); p2=(5,1)

1. hartnn

Distance between points (x1,y1) and (x2,y2) is $$\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$$ does this help ??

2. malibugranprix2000

I got square root of 26 so far.

3. malibugranprix2000

if I simplify that it goes into 2 * 13?

4. malibugranprix2000

is 2 square root of 13 the answer?

5. hartnn

sqrt 26 is the correct answer u can't simplify that to 2 square root of 13

6. Mimi_x3

I think the formula should be $\huge d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ or is it the same thing?

7. hartnn

same thing

8. malibugranprix2000

how come this answer I got right it was 2 square root of 17 the problem was p1(4,-3) pr(2,5)

9. malibugranprix2000

it came out to be square root of 68 that couldn't be simplified right?

10. hartnn

yeah, $$\huge \sqrt {68}= \sqrt {4*17}= \sqrt 4 \sqrt 17 =2\sqrt17$$

11. malibugranprix2000

oh ok I see

12. malibugranprix2000

thanks

13. hartnn

welcomes ^_^