Wally takes $40 out of his bank account every week. if he had a balance of $100 to begin with, what is his balance after 4 weeks?

Step-by-step explanation:

Wally takes out $40 dollars out of his bank account every week, then we know that he has $100 dollars to begin with,

Meaning that for 4 weeks, we have to $40 dollars out of $100.

   :

$100 - $40

==> $60

   :

$60 - $40

==> $20

   :

$20 - $40

==> -$60

   :

-$60 - $40

==> -$100

it has the same slope and a different y-intercept

hope this : )