Question

What is the length of E F? Round to the nearest tenth of a unit.



A.
7.2 units

B.
6.4 units

C.
3.6 units

D.
3.0 units

Answer 1

P1 (x1, y1) ; P2 (x2, y2)

Distance between two points is given by:

\[D = \sqrt{(x _{2}-x _{1})^2 + (y _{2}-y _{1})^2 }\]

Answer 2

Hmmm... let me think.. is the answer B

Answer 3

so in our case:
E is our P1 (first point)
F is our P2 ( second point)

Answer 4

Therefore to find the distance, D, between E(1,1) and F(5,6) :


D =\[\sqrt{(E_{2}-E_{1})^2 + (F_{2}-F _{1})^2} \]

OR using our values :

D = \[\sqrt{(5-1})^2 + (6-1)^2} \]

Answer 5

Ohh Okay i get you

Answer 6

:)

Answer 7

Do you have the answer

?

Answer 8

i think it's B?