Question

Find the distance between the two points:
Using the distance formula
(-20, -4) and (-7, -6)



A. 4
B. SQRT(61)
C.SQRT(290)
D. 5
E. SQRT(173)
F. SQRT(180)

Answer 1

Distance between points (x1,y1) and (x2,y2) is
\(\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\)
does this help ??

Answer 2

I already did that, and tried to solve it but i ended up getting 165 and idk how

Answer 3

ohh... then show your work, ill find out the error .....

Answer 4

if u used formula, tell me what u got as x1-x2 and y1-y2 = ?

Answer 5

(-7 - -20)sqrt 2 +(-6 - -4)sqrt2

Answer 6

that step is correct, what was your next step of simplification ?

Answer 7

if its \(\large \sqrt{13^2+2^2}\)
then its correct.

Answer 8

ohh thats where i went wrong I had -2

Answer 9

173 :D

Answer 10

yes, sqrt 173 is correct
and at first you actually get -2
but its square becomes +4
\(\sqrt{13^2+(-2)^2}=\sqrt{13^2+(2)^2}=\sqrt{173}\)