Question

Math problem...again

Answer 1

Is C the answer you think or is it one that you crossed out?

Answer 2

The one i crossed out.

Answer 3

So which do you think it is?
Or are you not sure?

Answer 4

So i know the rate of change for the first one is .78

Answer 5

and the rate of change for the second is 1.14

Answer 6

I'm not sure about the last one

Answer 7

Well, you already know the rate of change for the first two, so you can set those aside.

Answer 8

Yes, so how would I figure it out for the last one?

Answer 9

Which do you think it is, first of all.

Answer 10

Well, what I'm thinking is that the rate of change for letter D isn't going to be a decimal.

Answer 11

Okay, But how would I calculate the rate of change for it?

Answer 12

I don't fully know, I'm sorry.

Answer 13

I'm still confused. sorry

Answer 14

B) would be an example -- what is the rate of change for B)?

Answer 15

1.14?

Answer 16

keep it as a fraction

@snowflake0531 finish this please -- i dont have much time

Answer 17

So would it just be 8/7

Answer 18

I'm still not sure how

Answer 19

7x+8y=56
Can you first isolate y on one side?

Answer 20

Like, subtract 7x on both sides...

Answer 21

Wait would the slope just be the rate of change?

Answer 22

yes

Answer 23

So wouldn't it be -7/8 or 7/8

Answer 24

Yes -7/8

Answer 25

So now find the rate of change for A, the table
Use the slope formula \[ \frac{ y_{2} - y_{1} }{ x_{2}-x_{1} }\]
where you have (1,0.78) and (2,1.56) as \((x_{2},y_{2})~and~(x_{1}-y_{1})\)

Answer 26

It's .78 isn't it?

Answer 27

yes

Answer 28

So the one with the greatest rate of change is B?

Answer 29

yes

Answer 30

Ok thanks @florisalreadytaken and @snowflake0531

Answer 31

yw~