201k views
0 votes
Scott 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 Scott has been adding money. Suppose that x and y are related by the equation y = 50x + 450 .

1 Answer

4 votes

Answer:

Part 1) The change per week in the amount of money is $50

Part 2) The starting amount in the account is $450

Explanation:

The complete question is

Scott 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 Scott has been adding money. Suppose that x and y are related by the equation y = 50x + 450.

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.

1. WHAT IS THE CHANGE PER WEEK IN THE AMOUNT OF MONEY IN THE ACCOUNT?

2. WHAT WAS THE STARTING AMOUNT OF IN THE ACCOUNT?

Let

x ------> the number of weeks Scott has been adding money

y ------> the total amount of money in the account (in dollars)

we have


y=50x+450

This is the equation of a line in slope intercept form

where

The slope m is


m=50(\$)/(week)

The y-intercept b is


b=\$450

therefore

The change per week in the amount of money in the account is equal to the slope of the linear equation, so is equal to
50(\$)/(week)

The starting amount in the account is equal to the y-intercept of the linear equation ( value of y when the value of x is zero), so is equal to
\$450

User Unblevable
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories