Question

Alonzo 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 weeksAlonzo has been adding money. Suppose that x and y are related by the equation 20x+350 = y.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

Notice that the equation:

`y=20x+350`

represents a line. Therefore, the change per week is represented by the slope of the line and the starting amount is the y-intercept.

Now, notice that the above equation is in slope-intercept form:

`y=mx+b,`

where m is the slope of the line, and b is the y-intercept.

Therefore, the change per week in the amount of money is 20 dollars, and the starting amount was 350.

Answer:

The change per week in the amount of money is $20, and the starting amount was $350.