Question

Amanda exercised for 10 minutes every day in the first week, 20 minutes in the second week, 30 minutes in the third week, and 40 minutes in the fourth week.

Billy exercised for 5 minutes every day in the first week, 10 minutes in the second week, 20 minutes in the third week, and 40 minutes in the fourth week.

Which statement best describes the methods used by Amanda and Billy to increase the time they spent exercising?

Amanda's method is linear because the number of minutes increased by an equal number every week.
Billy's method is linear because the number of minutes increased by an equal factor every week.
Both Billy's and Amanda's methods are exponential because the number of minutes increased by an equal factor every week.
Both Billy's and Amanda's methods are exponential because the number of minutes increased by an equal number every week.

Answer 1

please help

Answer 2

can someone help please

Answer 3

Sure, pardon the delay. We're all lazy and now as I read the question, I'm sure I've helped someone with this a long time ago

So any ideas? Graph it. Weeks on the x-axis and minutes exercised on the y-axis

If you can visualize it, that's good too but I need to make sure you get it haha :]

Answer 4

i don't understand the question and its okay

Answer 5

So you know what a coordinate plane is right? x-axis and y-axis and such

Answer 6

yup

Answer 7

Pardon my handwriting I'm lazy rn, but do this for both and draw the graph

Answer 8

okay

Answer 9

And then look at the graphs, is it going linear or exponentially?

Answer 10

linear

Answer 11

For which person?

Answer 12

wait exponentially

Answer 13

The thing I drew out was for Amanda. Plot the points, if it makes a line then it's linear.

Answer 14

for amanda its linear

Answer 15

Good, that eliminates some answer choices. Here it is for Billy.
I just moved to a board that needs to be wiped lolol "pardon" that too ;b

Answer 16

lol billys is exponential

Answer 17

Good, so now you have your answer :)

Answer 18

omg thank you so muchhhhhh!!!!

Answer 19

No problem!!

Answer 20

Also welcome to QC :)

Answer 21

thanks! i just posted another question on a different one it be great if you could help :) thanks again