Question

$1000 is taken out of a bank vault each day and nothing is added back. Which of the following models this situation?

linear function with a negative rate of change
linear function with a positive rate of change
exponential decay function
exponential growth function

Answer 1

Negative rate of change I think.

Answer 2

Answer: linear function with a negative rate of change

Explanation:

A linear function is of the form
`y=mx+c` where x is a independent variable and y is a dependent variable . Here the dependent variable increase ( or decrease)c with a constant rate of increase (or decrease).

An exponential functionis a mathematical function of the form
`y=Ab^x` where x is a independent variable, and A is a constant called the initial value of the function. Here the dependent variable increase ( or decrease)c with a constant ratio or percentage.

Given: $1000 is taken out of a bank vault each day and nothing is added back.

So the money in the bank vault decreasing by a constant rate of $1000.

Thus, this shows linear function with a negative rate of change models the situation.