Name __________________________________________
Algebra I – pd ____
Due: Friday April 15th, 2011
Review Take Home Quiz 3
Directions: Complete all work on loose leaf unless otherwise noted. You must show all work or
give an explanation/definition where no work is necessary. This will be graded.
_____1) Which interval notation represents the set of all numbers from 2 through 7, inclusive?
(1) (2,7]
(2) (2,7)
(3) [2,7)
(4) [2,7]
_____2) Which property is illustrated by the equation ax + ay = a(x + y)?
(1) associative
(2) commutative
(3) distributive
(4) identity
_____3) The expression x2 – 16 is equivalent to
(1) (x + 2)(x – 8)
(2) (x – 2)(x + 8)
_____ 4) The value of the expression
(1) -10
(2) 10
(3) (x + 4)(x – 4)
when a =
(3) -4
and b =
(4) (x + 8)(x – 8)
is:
(4) 4
_____ 5) The members of the senior class are planning a dance. They use the equation nr = p to
determine the total receipts. What is n expressed in terms of r and p?
(1) n = r + p
(2) n = r – p
(3) n = p/r
(4) n = r/p
6) What is the sum of 5
and 3
7) Solve and check :
8) Tom throws a ball into the air. The ball travels on a parabolic path represented by the
equation
, where h is the height, in feet, and t is the time in seconds. –
(This question must be done completely on graph paper to get credit)
a) Graph the equation (parabola) from t = 0 to t = 5 seconds, including all integral values
of t from 0 to 5. (make sure to include the table)
b) What is the value of t at which h has its greatest value?