advertisement

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?