Question

The graph shows the depth, y, in meters, of a shark from the surface of an ocean for a certain amount of time, x, in minutes:



Part A: Describe how you can use similar triangles to explain why the slope of the graph between points A and B is the same as the slope of the graph between points A and C. (4 points)

Part B: What are the initial value and slope of the graph, and what do they represent?

Answer 1

@AnitaS.

Answer 2

i dont know how to do part a ?

Answer 3

I regret not saving my work. lol let me see though :D

Answer 4

kk :)

Answer 5

DAANG! I forgot how to do these now... hmm i think we should ask for some help. @Wendy.Ivette11714

Answer 6

@KendrickLamar2014

Answer 7

I have no clue

Answer 8

Ok let see....

Part A: because the two triangles are similar, their sides are proportional.
in particular the ratio of the legs of the triangles are equal. But since the slope is defined as the ratio of rise over run, that implies that the slopes between AB and AC are equal.

Part B: the initial value is 63 , it represents the distance from the ocean surface at time zero.
The slope is 42. It tells you that the shark increases its distance from the surface by 42 meters every minute. (I calculated the rise/run).

Answer 9

Hope it helps ^_^

Answer 10

omg thank you~!!!
u r a lifesaver!!!!!

Answer 11

Your welcome

Answer 12

Ill give a medal to you and Wendy :)

Answer 13

^-^

Answer 14

There :)

Answer 15

told u someone else could help! ^.^

Answer 16

lol

Answer 17

YOU ARE A BIG HELP @KendrickLamar2014
THANK YOU SO MUCH FOR HELPING ME :D

Answer 18

Your welcome. Im glad I could help you ^_^