Question

Use the distance formmula to find the distance between point B (-3,-8) and point C (2,4).

Answer 1

Do you know what the distance formula is?

Answer 2

yes but I'm confused as to where to put the numbers in.

Answer 3

\[d=\sqrt{x^2+y^2}=\sqrt{(x_1-x)^2+(y_1-y)^2}\]
You have two points, find the change in x and change in y, and put into the formula.

Answer 4

is -3 -8 x1 and y1

Answer 5

it shouldn't make a difference since it's squared. But usually if you want to find the distance from B to C, your x1y1=C and xy=B

Answer 6

Is the answer 17

Answer 7

\[dist=\sqrt{(2+3)^2+(4+8)^2}=\sqrt{25+144}=\sqrt{169}=13\]

Answer 8

My distance formula says you subtract x 2 and x 1

Answer 9

yup.
\[2-(-3)=2+3=5\]

Answer 10

\[4-(-8)=4+8=12\]
Double negative becomes a positive.

Answer 11

Ok. Thanks for youre help.