Question

Help please in functions!

Answer 1

Maddy and Caitlin spend a certain amount of money from their money box each month to buy bracelet-making supplies.

The table shows the relationship between the amount of money (y) remaining in Maddy's money box and the number of months (x):
Function 1Number of Months
(x) Amount Remaining (in dollars)
(y)
1 100
2 80
3 60
4 40


The equation shows the relationship between the amount of money (y) remaining in Caitlin's money box and the number of months (x):

Function 2:
y = −18x + 120

Which statement explains which function shows a greater rate of change?

Function 2 shows a greater rate of change, because Maddy spends $20 each month and Caitlin spends $18 each month.
Function 2 shows a greater rate of change, because Maddy spends $100 each month and Caitlin spends $120 each month.
Function 1 shows a greater rate of change, because Maddy spends $20 each month and Caitlin spends −$18 each month.
Function 1 shows a greater rate of change, because Maddy spends $20 each month and Caitlin spends $18 each month.

Answer 2

Maddy spends 20 dollars per month
Caitlin spends -18 dollars???

Answer 3

the negative before the 18 x shows that 18 dollars are taken from the money each month

Answer 4

So C is incorrect

Answer 5

so which one is correct?

'spending' is indicated by a negative but the amount spent is not negative.

Answer 6

could it be A? (im the same person btw)

Answer 7

maddy's rate of change is $20 and Caitlin's is 18 dollars
Not A

Answer 8

ok

Answer 9

ITS D

Answer 10

yes