Reasoning A store sells packages of comic books with a poster. A poster and 8 comics cost $15.99. A poster and 13 comics cost $20.99. Write a linear function rule that models the cost y of a
package containing any number x of comic books.
Suppose another store sells a similar package, modeled by a linear function rule with initial value
$6.75. Use pencil and paper. Explain which store has the better deal
.
The linear function rule is y=-