Beginning Algebra Departmental Review Sheet

[Additional Content Outcome 7 (c), Sec 4.4, 4.5, 4.6]
Perform the indicated operations. (Also see problem 49)

[Additional Content Outcome 7 (d), Sec 5.1, 5.2, 5.3, 5.4, Summary Exercises on Factoring]
Factor completely .

[Additional Content Outcome 7 (e), Sec 5.5, 6.6]
Solve each equation. Show that the solutions check (s).

[Additional Content Outcome 7 (f), Sec 6.1, 6.2, 6.4, 6.5]
Perform the indicated ope rations and simplify if possible .

Simplify.

[Additional Content Outcome 7 (g), Appendix A pp 992-994, p 214, p 218, p 226, p 231]]
Evaluate each of the fol lowing on a TI -82/83/84, if possible. State the result the calculator shows exactly.

91. Find the quotient, if possible on a TI-82/83/84. State the full result the calculator shows exactly.

[Additional Content Outcome 7 (g), Appendix A pp 992-994, p 214, p 218, p 226, p 231]
Graph these equations on a TI -82/83/84. Do all the following as part of that process.
a) State your grapher model number (TI-82/83/84, etc.).
b) For each equation – state all keystrokes used to enter that function in the .
State precisely the sequence of keystrokes that you use as directed in each part below. Write each separate keystroke
in a separate box in a table similar to the one shown in the example.
Example: If entering , the keystrokes (left-to-right) would be

c) State how you view a basic centered (“standard”) graph of any equation (once).
d) If in a “lecture” or hybrid section, you may be asked to show your instructor the graph while it’s displayed on your
grapher. In any section format, you may also be asked to sketch the graph you see displayed either roughly or
carefully.
(Note: You may need to solve for y = mx + b form first.)

[Other problem types which are highly likely to appear on final]

[Linear Inequalities in One Variable , Sec 2.8]
95. Solve the inequality. Write the solution set in interval notation and graph it (on a number line ). 3y – 5 > 7y + 3

[ Slope and Line concepts, Sec 3.3, 3.4]
96. Find the slope of the line through the pair of points: (–1, –2) and (2, 4). 97. Find the slope and y- intercept . –5x + 3y = 15

98. De termine whether the two lines are parallel, perpendicular, or neither parallel nor perpendicular. (Graphing is not sufficient. Use
algebra.)

3x – 2y = 6
2x + 3y = 3

[Other Polynomial Concepts: Definitions and Division , Sec 4.4, 4.7]
99. Find the terms, coefficents and degree of each term, and the degree of the polynomial, and tell whether the polynomial is
a monomial , binomial, trinomial, or none of these: 4xy² + 7xy + 9x³yz

100. Perform the division (using long division).

Verifying solutions: Sec 2.1, 2.2, 2.3, 2.8, 3.1, 5.5, 6.6]
Check all solutions in # 1-4, 72-76 + do the following:
101. True or false (show a reason) :…5 is a solution of .

[Model any problem using algebraic process - continued, p 38, p 44, 2.5, 2.8, 4.4, 4.5, 5.7, 6.6, 6.7]
* If it’ s not a formula -based problem, solve, showing all the steps: i) Read the problem, ii) As sign (Label the unknown: x
represents what words, develop a verbal model), iii) Write an equation, iv) Solve, v) State the answer (as a compete
sentence), vi) Check (makes sense?).
* If it is a formula-based problem (e.g., #’s 106 & 107) show your replacement step and all work. Write the final answer as a
complete sentence.

102. (2.5) On March 17, 2005, a new record was set for the world’s largest sandwich. The fillings of this sandwich were
corned beef, cheese, lettuce, and mustard. The sandwich, made by Wild Woody’s Chill and Grill in Roseville, Michigan,
was 12 ft long, 12 ft wide, and in. ( ft) thick. What was the volume of the sandwich? (Source: Guinness World
Records.)

103. (2.8) Mabimi Pampo has scores of 96 and 86 on his first two geometry tests. What possible scores can he make on his
third test so that his average is at least 90?

[Model any problem using algebraic process - continued, p 38, p 44, 2.5, 2.8, 4.4, 4.5, 5.7, 6.6, 6.7]

104. (4.4) If an object is projected upward under certain conditions, its height in feet is given by the trinomial
–16x² + 60x + 80, where x is in seconds. Evaluate this polynomial for 2.5, and then use the result to fill in the blanks:
If seconds have elapsed, the height of the object is feet.

105. (5.6) If an object is projected upward from ground level with an initial velocity of 64 ft per sec, its height h in t seconds
later is h = –16t² + 64t. After how many seconds does the object hit the ground?

106. (5.6) The area of this rug is 80 sq. units. Find its length and width.

107. (6.7) A pump can pump the water out of a flooded basement in 10 hr. A smaller pump takes 12 hr. How long will it take
to pump the water from the basement with both pumps? (State the answer exactly.)

108. (6.7) A boat can go 20 mi against a current in the same time that it can go 60 mi with the current. The current is 4 mph.
Find the speed of the boat in still water.

[Geometric Concepts]
109. (4.4) Find a polynomial that represents the perimeter of the triangle.

110. (4.5) Find a polynomial that represents the area of the shaded region in the figure.