PRE-CALCULUS

Practice and Answer Keys

Answer keys from in class practice and homework can be found below.  These have been uploaded as a courtesy so you can check your work.  Please use these wisely and  understand that simply copying the answers will not help you with the comprehension of the material.  

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Unit 1 - Matrices

1.Solving Systems of Equations

1a.Solving Systems of Equations

2.Adding and Subtracting Matrices

3.Multiplying Matrices

4.Determinants

5.Inverses

6.Solving Matrix Equations

6A.Solving Matrix Equations

7.Representing Systems with Matrices

8.Linear Programming

9.Matrices Test Review

Matrices Almost There

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Unit 2 - Conics

1.Circles

2.Ellipses

Circles and Ellipses Extra Practice

3a.Parabolas Notes

3b.Parabolas Homework

Mid-Unit Quiz Review

4.Hyperbolas

Classifying Conics

Conics Almost There

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Unit 3 - Introduction to Trigonometry

1.Special Right Triangles

2. Right Triangle Trigonometry

3. The Unit Circle

4. Angles and Their Measure

5.Trig Functions of Any Angle

6.Applications and Models

Mid-Unit Quiz Review

Introduction to Trig Test Review

Introduction to Trig Almost There

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Unit 4 - Graphing Trig Functions

1.Graphing Sine and Cosine Functions (Amplitude and Period)

2.Graphing Sine and Cosine Functions (Phase and Vertical Shift)

2a.Graphing Since and Cosine Functions

3. Graphing Tangent Functions

Graphing Sine/Cosine/Tangent Check for Understanding

4. Graphing Secant/Cosecant/Cotangent Functions

Graphing Secant/Cosecant/Cotangent Functions Check for Understanding

5.Writing Equations of Sine/Cosine/Secant/Cosecant Graphs

6.Inverse Trigonometric Functions

7. Review - Graphing and Inverses Test

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Mid Term Exam Preparation

Unit 1 - Matrices

Unit 2 - Conics

Unit 3 - Introduction to Trigonometry

Unit 4 - Graphing Trig Functions and Inverses

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Unit 5 - Trigonometric Identities

1.Factoring Review

2.Simplify Trig Identities

3.Verify Trig Identities

4.Verify and Simplify Trig Identities

5.Extra Simplify and Verify Trig Identities Practice

6.Sum and Difference Formulas

7.Double Angle and Half Angle Formulas

8.Solving Trigonometric Equations

9.Almost There

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Unit 6 - Trigonometry of General Triangles

1.Law of Sines and Cosines

2. Ambiguous Cases

3.Area of Triangles

4.Word Problems

5.Trig of General Triangles Review

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Unit 7 - Vectors

1.Vector Operations and Scalar Multiplication

2.Component Form and Magnitude

3.Unit Vectors

4.Dot Product

5.Angle Between Two Vectors

6.Almost There

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Unit 8 - Probability

1.Arithmetic and Geometric Sequences

2.Arithmetic and Geometric Sums

3.Word Problems for Arithmetic and Geometric Sums

4.Unit 8 Review Page 1

4.Unit 8 Review Page 2

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