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.

Answer 1

To start, since the y values are constant, we can ignore then. So, we now have to determine if it's B or D. To find that out, I'll make a small graph.

Answer 2

Now, looking at the graph, what's the distance between the points?

Answer 3

uuuhhhh

Answer 4

sry im brainshot

Answer 5

No problem, I'll add something to the drawing that might make it more clear.

Answer 6

4

Answer 7

Count again. Notice that the segment doesn't go all the way to the y-axis.

Answer 8

uuuhhhh im brainshot