Question

Zach read a book for 10 minutes every weekend in the first month, 20 minutes in the second month, 40 minutes in the third month, and 80 minutes in the fourth month.

Victoria read a book for 35 minutes every weekend in the first month, 50 minutes in the second month, 65 minutes in the third month, and 80 minutes in the fourth month.

Which statement best describes the methods used by Zach and Victoria to increase the time they spent reading a book?

Zach's method is linear because the number of minutes increased by an equal factor every month.
Victoria's method is linear because the number of minutes increased by an equal number every month.
Both Victoria's and Zach's methods are exponential because the number of minutes increased by an equal factor every month.
Both Victoria's and Zach's methods are exponential because the number of minutes increased by an equal number every month.

Answer 1

ok so what do not understand

Answer 2

or what can we help with

Answer 3

Time Zach was reading was given as:
\[10,\ 20,\ 40,\ and\ 80,\]
Every number is x2. Every time the next number comes, it's 2x the previous one.

Answer 4

Victoria's reading time was given as\[35,\ 50,\ 65, \ and\ 80\]

Every time there's a new number, it is the previous number +15

Answer 5

So, based on that what do you think the answer would be?