1. Use a graphing calculator or computer to determine which viewing rectangle produces the most appropriate graph of the function {image} Choose the answer from the following:
[ -10, 10 ] by [ -10, 10 ]
[ -100, 100 ] by [ -200, 200 ]
[ -4, 4 ] by [ -4, 4 ] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

2. Determine an appropriate viewing rectangle for the given function
Determine an appropriate viewing rectangle for the given function. {image} . Choose the answer from the following:
[-6, 12] by [-39, 25]
[ -100, 0 ] by [ -100, 0 ]
[ -100, 100 ] by [ -10, 10 ]
[ 0, 100 ] by [ 0, 100 ] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

3. Determine the graph of the given function. {image}
Determine the graph of the given function. {image} . Choose the answer from the following: 1.
{applet} 2. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

4. For what values of x is it true that {image}
For what values of x is it true that {image} ? Choose the answer that is correct to two decimal places:
( 11.72, )
( 13.12, )
( 11.02, ) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

5. How does the graph of the function {image} change when c changes
How does the graph of the function {image} change when c changes? Choose the correct statement:
the humps get flatter as c decreases
at c = 0 one of the humps disappears
if c < 0 the graph has three humps 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50