Use the Distance Formula to find the distance to the nearest tenth between A(-7, -4) and B(-2, 0).

Question

anonymous · Answer

so you can make sure that you will  be able to find the distance

anonymous · Answer

Definitely use the distance formula first

anonymous · Answer

Yeah, round to the nearest tenth to get a approximate answer

anonymous · Answer

Ok but how do I do that?

anonymous · Answer

http://www.purplemath.com/modules/distform.htm

anonymous · Answer

Use the distance formula, of course

anonymous · Answer

Google rocks!!!

anonymous · Answer

from -2 to -7 is 5 units, from -4 to 0 is 4 units, pythagoras says $5^2+4^2=d^2$ so $d=\sqrt{5^2+4^2}$

anonymous · Answer

A(-7, -4) and B(-2, 0). 

D=sqrt(dx^2+dy^2)

where dy and dx meand difference in x and y

campbell_st · Answer

the formula is 

$$d = \sqrt{(x _{2}-x _{1})^2 + ( y _{2}- y _{1})^2}$$

designate the ordered pair A as the 1 point and the other B as the 2 point

substitute and evaluate as shown above