Question

Salma is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x represent the number of weeks Salma has been adding money. Suppose that x and y are related by the equation =+55030xy.Answer the questions below.Note that a change can be an increase or a decrease.For an increase, use a positive number. For a decrease, use a negative number.What is the change per week in the amount of money in the account?$What was the starting amount of money in the account?$

Answer 1

Given:

There are given the equation:

$550+30x=y$

Explanation:

According to the question:

First, we need find the change per week in the amount of money.

So,

We need to compare this equation with the standard form of the equation:

So,

$y=mx+b=30x+550$

So,

If m>0, then the change will increase, and if m<0, the change will be decreased.

So,

The amount of money change per week is 30.

And,

The starting amount of money is 550.

Final answer:

Hence, the answer of both part is shown below:

$\begin{gathered} (a):30 \\ (b):550 \end{gathered}$