Jacob has $1,000 in a checking account and withdraws $40 each week. his account requires a minimum balance of more than $400. write an inequality to model the number of weeks, x, that he can withdraw $40 to maintain the minimum balance requirement.

Step-by-step explanation:

Let's call B the balance of Jacob's checking account. Each week he withdraws $40 from his actual balance of $1000, so if x is the number of weeks, the account's balance is

B=1000-40x

The balance must be more than $400, which means

That is the inequality to model the situation. If we wanted to know the limit for x, we can solve the inequality. Operating:

600>40X

Or x<15

Which means Jacob can withdraw $40 14 times at most to maintain the minimum balance requirement

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.