Math Question?

Question

I fave to find the distance between two points in the coordinate plane (4,9) & (-2,5)... It says to use the distance formula... does anyone know what that is and how i go about solving this equation

Answer 1

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

the above web page describes exactly what you need to do with an example along the way

Answer 2

just use the pythagorous theorum. (used to find the length of the hypotenuse in right angled triangles) [excuse my spellings, i just remember how the terms sound, lol-grade school was a long time ago!]
the equation is: a^2 + b^2 = c^2

find the vertical distance between the two points (9-5 = 4)
find the horizontal distance (4--2 = 4+2=6)

so the distance would be the square root of 4 squared plus 6 squared.

Answer 3

the distance formula is the Pythagorean theorem
a^2 x b^2 = c^2
you need to find the differences in the x and y values
so 4 - -2 =6
9 - 5 = 4

a = 6
b = 4

put those values into the equation to get c^2 then take the square root and that will be the distance

Answer 4

the rule is:
I can't find the square root button on the keyboard,so when I write square root,it means the no,s that are after it,are under it.You do it on the calculator:
square root: (x2-x1)+(y2-y1)
=(-2-4)+(5-9 )
=you find the result on the calculator

Answer 5

If you have two points (x1,y1) and (x2,y2), you determine dlx=x2-x1 and dly=y2-y1. Then the distance is sqrt(dlx^2 + dly^2). This is the Phythagorean theorm in disguise.

Answer 6

x1=4 x2=-2 y1=9 y2=5
Diatance=WHOLE ROOT{(x2-x1)^2+(y2-y1)^2}
=>WHOLE ROOT{(-6)^2+(-4)^2}
=>WHOLE ROOT(36+16)
=>WHOLE ROOT(52)
=>2root13

cheers!!!!!!!!!!!!