Question

Please help. Medal.

Cindy borrowed the same amount of money from a bank and a friend. The table below shows the amount, in dollars, that Cindy would owe them after different numbers of years:

Answer 1

Which statement is true about the money Cindy would owe the bank and her friend after 30 years?
She would owe the bank more money.
She would owe her friend more money.
She would owe both the same amount of money.
She would owe her friend twice the amount she borrowed.

Answer 2

Notice the pattern with the amount increasing for her friend.

Answer 3

It increases by 3 each time.

Answer 4

Okay, Do you have a graphing calculator?

Answer 5

Yep. Sort of. Does desmos.com/calculator count?

Answer 6

https://www.desmos.com/calculator

Answer 7

yes it does. :) I have that on my profile. If you graph the points, what kind of function does it seem like?

Answer 8

linear, quadratic, cubic, quartic, quintic?

Answer 9

Linear, its a straight line, right?

Answer 10

@wmj259 Are you there?

Answer 11

@wmj259 Its linear, right?

Answer 12

let me check

Answer 13

Its not a linear graph its a cubic. It may be a higher degree fucntion, but cubic fits those points.

Answer 14

Oh okay. Now what.

Answer 15

Er..............

Answer 16

.......Wow. I'm going to die.

Answer 17

Im guessing she borrowed $100 initially?

Answer 18

Idk. :/ Makes sense.

Answer 19

The distance between the amount she owes her friend and the bank increases. Yes?

Answer 20

Which one increases?

Answer 21

Both of them increase

Answer 22

Notice year 1 theyr only 50 cents apart, then year 2 they are $1.94 apart. then as the years go they get farther apart.

Answer 23

year 4 they ar ealmost 2 dollars apart. Yes?

Answer 24

Yep.

Answer 25

I'm pretty sure its B or D. They make the most sense. 30 x 3 = 90 and thats almost twice as much.

Answer 26

So if this continues on for say 30 years, the difference will get (obviously bigger) bigger, right? Now which one is the cheaper from the data given on the graph?

Answer 27

The bank?

Answer 28

Yes the bank is cheaper. But notice option D. That may be the right answer or B.

Answer 29

The bank will never be more expensive then her friend, hence they will never be the same?

Answer 30

So i will leave you at this cliff hanger ;) B or D.

Answer 31

Sorry I cant help you.

Answer 32

Okay. :/ Bye