4) Toys for Tots is a charity that is run by the U.S. Marine Corps Reserves that collects new, unwrapped toys each
year and distributes those toys as Christmas gifts to less fortunate children. Toys for Tots also accept monetary
2
donations throughout the year to help purchase gifts. They use the equation y = .25(x – 3)
+ 1.2 to model an
estimate for how much money they raise throughout the year (x is the month (x = 1 is January 1st) and y is the
amount raised in millions of dollars).
a) What is the domain of the model in this situation?
b) What month would the U.S. Marine Corps Reserves expect the least amount of money to be donated? How much
would they expect to be donated that month?
c) How much would the U.S. Marine Corps Reserves expect to be donated in August?
d) What month would the U.S. Marine Corps Reserves expect the most to be donated? About how much are they
expecting that month?
SAT PREP Below are sample SAT questions. The SAT is the main standardized test that colleges look at for
admission. One is multiple choices; the other is free response where you must grid in your answer. Blow it up.
MULITPLE CHOICE
GRID IN
2
In the xy coordinate system, the graph of y=5(x-3)
+1
What is the maximum value of The graph
2
2
intersects y = -7(x-3)
+1 at what point?
of y = -2.5(x – 4.5)
+ 15.5
(A) (5, -7)
(B) (-7, 5)
(C) (-3, 1)
(D) (3, 1)
(E) (1, 3)