Question

find the distance between the following points:
(-1,-7) (4,5)

Answer 1

Use the distance formula! :)
Do you know it?

Answer 2

I'm looking for it??

Answer 3

Distance between 2 points =

\[\sqrt{(x2-x1)^2 + (y2-y1)^2}\]

Use the points given in the equation! :)

Answer 4

\(\bf \text{distance between 2 points}\\
d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}\)

Answer 5

=169

Answer 6

Yes excellent!
But the square root of that right?
It is under root! :D

Answer 7

@Algebra2013 ? :D

Answer 8

=169?
or
\[169^2\]
??

Answer 9

No see
You must have got it as sqrt 169 right?

Answer 10

no just 169

Answer 11

So \[\sqrt{169}\]
= +13 or -13
And we know it is distance so it cannot be negative....

So the distance between them would be 13 units!! :D

Understood? :)

Answer 12

oh ok. cool!!!!!!!!!!

so what would 162 be?? as a square

Answer 13

\[9\sqrt{2}\]

Answer 14

For sqrt 162
Right it in terms of it factors!! :D
\[\sqrt{162} = \sqrt{2 * 9 * 9} = 9\sqrt{2}\]

Got it? :)
YES CORRECT!! :D

Answer 15

Good job! :)