## anonymous one year ago Explain the distance formula and calculate the distance between a(1,1) and b(7,-7)

1. zzr0ck3r

The distance $$D$$between two points $$(a,b)$$ and $$(c,d)$$ is given by $D=\sqrt{(a-c)^2+(b-d)^2}$

2. zzr0ck3r

Which part do you not understand?

3. anonymous

How to do the formula

4. zzr0ck3r

Ok, I gave you the formula for points $$(a,b)$$ and $$(c,d)$$. Look at your points, what is $$a=?$$

5. zzr0ck3r

what is $$b=?$$

6. zzr0ck3r

and $$c$$ and $$d$$?

7. anonymous

I know how to plug the numbers in just don't understand how to solve it

8. zzr0ck3r

ok so you have this $$\sqrt{(7-1)^2+(-7-1)^2}$$?