College Algebra K/DC
Monday, 08 February 2016
• OBJECTIVE TSW review for tomorrow's test over
sec. 2.7 – 2.8.
• ASSIGNMENTS DUE TOMORROW
– Sec. 2.8: pp. 266-268 (1-10 all, 33-37 all, 43)
– Sec. 2.8: pp. 268-269 (47-53 odd, 55-60 all, 63, 65, 69,
73)
• Today’s worksheet, WS Review: Sec. 2.7 – 2.8,
is NOT for a grade.
TEST TOPICS:
Sec. 2.7 – 2.8
• Sec. 2.7: Graphing Techniques
– Calculator
• Algebraically determine symmetry
– x-axis
– y-axis
– origin
• Algebraically determine whether a function is
even, odd, or neither.
– No Calculator
• Given an equation, describe the
transformations.
• Given transformations, write the equation.
• Graph transformations from parent functions.
– Square, square root, absolute value
TEST TOPICS:
Sec. 2.7 – 2.8
• Sec. 2.8: Function Operations &
Compositions
– Calculator
• Add, subtract, multiply, and divide functions and
find the resulting domains.
• Find the composition of functions.
• Find difference quotients.
– No Calculator
• Find the composition of functions and the
resulting domains.
TEST TOPICS:
Sec. 2.4 – 2.6
• PART I: WITH CALCULATOR
• PART II: WITHOUT CALCULATOR
– Once you get part II, you may not use a
calculator for the rest of the test.
– You will hand in both parts at the same time.
• Questions?
– Work on the review worksheet.
• I will give answers before you leave.
WS Review: Sec. 2.7 – 2.8 - Answers
1)
x-axis symmetry, y-axis symmetry, origin symmetry
2) x-axis symmetry only
3) no symmetry
4) y-axis symmetry only
5) Even
7) 77
10)
6) neither
8) 20
3x 2  4
9) 3x4 – 9x3 – 16x2 + 12x + 16
x 2  3x  4
11) (−∞, ∞)
12) (−∞, −1)  (−1, 4)  (4, ∞)
15  3x
–26
15
−4
13) /59
14) /7
15) /11
16)
7  2x
17) (−∞, 7/2)  (7/2, 5)  (5, ∞)
18) 2
19) 2x + h - 5