Final Exam Review Packet - Algebra II - iLearn Academy
[Pages:11]Name: ____________________ Algebra II, Period ___
Date: __________ Math Department
Final Exam Review Packet - Algebra II
? This review packet contains questions that are similar to the type of problems that you will encounter on the exam.
? The in-class review is not meant to re-teach you everything from the second semester. It will be a quick, but thorough overview of the material.
? It is recommended that you work on this review packet leading up to your exam day so you have questions ready. Don't wait till the last minute.
? Remember that the exam counts for 20% or your course grade. ? Reviewing for the exam is YOUR responsibility. ? If you have questions as you prepare, make arrangements to see your teacher.
I. Quadratics Equations
Solve each of the following equations using factoring.
a. x2 - 36 = 0
b. 7x2 -14x = 0
c. x3 - 6x2 - 7x = 0
d. 6x2 + 7x - 3 = 0
e. 3x2 + 3x - 36 = 0
f. 32x2 - 2 = 0
g. x3 - 2x2 - 9x +18 = 0
h. x3 - 3x2 + 6x -18 = 0
Quadratics Equations (continued) Factor each polynomial COMPLETELY.
( ) Sum of Two Cubes: a3 + b3 = (a + b) a2 - ab + b2
( ) Difference of Two Cubes: a3 - b3 = (a - b) a2 + ab + b2
a. x3 + 27
b. 8x3 -125
c. x4 + 5x2 -14
d. 2x5 -18x3 + 40x
Solve each of the following equations using the Quadratic Formula.
- b ? b2 - 4ac Quadratic Formula: x =
2a
a. 4x2 + 6x +1 = 0
b. x2 + 2x + 2 = 0
c. 2x2 + 3x - 5 = 0
d. 3x2 - 2x - 7 = 0 2 of 11
II. Powers, Roots, and Radicals
Rewrite the expression with positive exponents. Evaluate where possible.
a. (- 3) - 4
b. 4 x0 + 7
c. 3x3 (2x) 2
d. 8a 4b6
( ) 2 a5b 2
( ) ( ) e. 4 x-3 y 4 - 3xy2 2
( ) f. 20 a- 4b- 2 ( ) 8 a - 2b4 - 2
Solve the radical or rational exponent equation.
1
a. x 5 = 2
b. 2 3x -1 + 3 = 11
c. 4x2 = 64
1
d. 2(x - 2) 4 - 3 = 159
e. 2x + 4 = x + 2
f. 3 x - 6 = -2
3 of 11
III. Simplifying Rational Expressions
Simplify the Rational Expression using Multiplication or Division.
( ) a.
x2 + 4x -12 6x2
x2 x2 + 9x +18
f. 12x2 y3 z 6x3 y2z2
b.
3x2 -12
1
5x -10 2x + 4
g.
x3 + 3x2 x2 + 5x + 6 ?
2x
5x3
c. x2 - 4 x + 2 x2 + 4 x -2
h. x2 + x - 20 ? 11x + 55
x +1
x +1
d.
5x2 - 20
x
25x2 x - 2
i.
x2 + 5x + 6 x2 - 4 ?
x+3
x +1
e.
x2
+
x
-
30
x2
x +
6x
j.
x2 + 6x - 7 x + 7 ?
3x2
6x
4 of 11
Simplifying Rational Expressions (continued) Simplify the Rational Expression using Addition or Subtraction. (LCD = ?) a. 4 2 + 3x2 5x
b. 3 + x +1 2x - 2 4
c. 4 + x 3x3 6x3 + 3x2
d.
5x -1 - 6
x2 + 2x -8 x + 4
e.
x +1
1
-
x2 + 6x + 9 x2 -9
5 of 11
IV. Solving Rational Equations
Solve each rational equation.
a.
3=9
x+4 x-2
b. 4x = x x -1 x2 -1
c. 3
2x
=+
x2 -4 x + 2 x -2
d. 3x - 2 = 6 +1 x - 2 x2 -4
e. x 3x +1
4
=
+
x + 2 x -1 x2 + x - 2
6 of 11
V. Function Operations Perform the indicated operation with the functions given. Let f (x) = x2 - 3x + 4 , g(x) = 5x + 2 , and h(x) = 6x .
a. ( f + g) (x) =
b. ( f - h) (x) =
c. (g h) (x) =
d. ( f + h) (- 2) =
e. (h - g) (3) =
f. (g f ) (0) =
g. ( f o g)(x) =
h. ( f o h)(x) =
i. (g o f )(1) =
j. ( f o h)(-7) =
k. g(h( f (x))) =
l. f (g(h(-1))) =
7 of 11
VI. Inverses
Find the inverse of each function.
a. f (x) = 2x + 5
b. f (x) = 3 2x + 4
c. f (x) = 5 - 5 x
2
d. f (x) = x - 2
4
Verify that the two functions are inverses of each other using composite functions. Then, verify (a) and (b) by graphing.
a. f (x) = x + 7 , g(x) = x - 7
b. f (x) = 1 x +1, g(x) = 2x - 2
2
y x
y x
c. f (x) = 1 x2 , g(x) = 3x
3
d. f (x) = x5 + 2 , g(x) = 5 7x - 2
7
The graph of the inverse function is the reflection of the original function over what line? 8 of 11
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