Identify the function with a period of 4 and an amplitude of 2

Pick the description of a geometric object that best matches the real world object box for a deck of card

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12