Question

Lenny and Thad spend a certain amount of money from their money box each month to buy comic books. the table shows the relationship between the amount of money (y) remaining in Lenny's money box and the number of months(x): function1
number of months(x)
1
2
3
4
amount remaining (in dollars) (y)
75
60
45
30.
the equation shows the relationship between the amount of money(y) remaining in Thad's money box and the number of months(x):
function 2:
y=12x+80
which statement explains which function shows a greater rate of change?
a:
b:
c:
d:

Answer 1

can any on help me?

Answer 2

so lets make the table:

number of months. (the x) amount in dollars. (the y)
\(\large\color{black}{ 1 }\) \(\large\color{black}{ 75 }\)
\(\large\color{black}{ 2 }\) \(\large\color{black}{ 60 }\)
\(\large\color{black}{ 3 }\) \(\large\color{black}{ 45 }\)
\(\large\color{black}{ 4 }\) \(\large\color{black}{ 30 }\)

Answer 3

this is the first function represented in the table. Can you tell me what is happening to the amount after each month?

Answer 4

its a 15 dollar difference. but I don't get the function 2 how do you solve that one?

Answer 5

i understand a little but not much! i understand the function 1, but not function 2! can you explain more to it?