A line segment is drawn from (+1, +9) to (+4, +9) on a coordinate grid.

Which answer explains one way that the length of this line segment can be determined?

A.
Add 9 + 4.

B.
Add 4 + 1.

C.
Subtract 9 – 4.

D.
Subtract 4 – 1.

Question

A line segment is drawn from (+1, +9) to (+4, +9) on a coordinate grid. 
 
Which answer explains one way that the length of this line segment can be determined?
 
 A.
Add 9 + 4.
 
 B.
Add 4 + 1.
 
 C.
Subtract 9 – 4.
 
 D.
Subtract 4 – 1.

anonymous · Answer

do you know distance formula

anonymous · Answer

no

anonymous · Answer

okay 
$$d = \sqrt{(x2-x1)^2 + (y2-y1)^2}$$

anonymous · Answer

a b c or d

anonymous · Answer

so x2-x1 should be 4-1
and y2-y1 should be 9-9

anonymous · Answer

sigh

anonymous · Answer

what do you guys do by just knowing the answers?

anonymous · Answer

ummm

anonymous · Answer

disapointing

anonymous · Answer

you do not need the distance formula for this

anonymous · Answer

the y coordinates are the same, so the line is vertical 
compute the distance between 1 and 3

anonymous · Answer

oops i mean compute the distance between 1 and 4

anonymous · Answer

still
i was explaining and he/she asked a,b,c or d
its annoying

anonymous · Answer

im the one asking the question not the one answering a question that i made up in my head

anonymous · Answer

anyway i dont want to argue so im just gonna close this