Question

Which is a correct interpretation of the slope of the line in this graph?

A. The volume of water in the tank is decreasing by 2.5 L per hour.

B. The volume of water in the tank is decreasing by 2 L per hour.

C. The volume of water in the tank is decreasing by 0.5 L per hour.

D. The volume of water in the tank is decreasing by 0.4 L per hour.

Answer 1

http://static.k12.com/calms_media/media/1349000_1349500/1349446/1/243b9e0f28b9a08c3701f1ccdf54e174137b95ce/150515.jpg

Answer 2

@jigglypuff314 ?

Answer 3

decreasing 1/2 liter per hour

Answer 4

C, can you explain, please?

Answer 5

points (1, 9) and (5,7)
5-1=4
9-7=2
over a period of 4 hours, decreased by 2
2/4 = 1/2

Answer 6

Oh, ok. So we just had to find the slope and simplify, and that's our answer!

Answer 7

yep :)

Answer 8

If 5=x2, then is 7= y2?

Answer 9

huh?

Answer 10

Hold on.. I think I'm getting messed up

Answer 11

Can you tell me which is \[(x1, y1), (x2, y2)\]

Answer 12

oh yeah
then you were right :)
I got confused for a sec >,<

Answer 13

I'm right about what?

Answer 14

So the answer is not C?

Answer 15

answer is C
and you were right about "If 5=x2, then is 7= y2"

Answer 16

Oh, ok. So your sure its C? :P

Answer 17

yep :)

Answer 18

Ok, thanks :)

Answer 19

I gtg now, thanks again for your help! Sorry I wasted your time

Answer 20

Bye! :) ♥