A function is shown.

f(x) = x² + 2x - 1

Which graph represents this function?
​

To start her collection of comic books, Joylin's uncle gives Joylin a box of comic books and several monthly subscriptions to comic books.  The number of comic books in her collection, y, after x months is modeled by the equation shown.
      
          y = 40 + 6x

What does the number 40 represent in this equation?

A.)  the price of a comic book subscription
B.)  the number of months of Joylin's subscriptions
C.)  the number of comic books in the box she received
D.)  the number of title subscriptions Joylin received each month

A system of linear equations is shown:
-3x + y = K
2x + 3y = L

Which system has the same solution as the system shown?
A.)  -9x + 3y = -3k
        2x + 3y = 11

B.)  6x - 2y = -2K
       2x + 3y = L

C.)  -3x + y = K
        3x + 4.5y = L

D.)  -3x + y = K
       -8x - 12y = L
​