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Laabri

Unit 1 Study Guide (Due 11/2/23)

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34 Nsɛmmisa

This is the study guide for the Unit 1 test.

You will be allowed to use this on the test along with any other assignments and notes.

Complete the entire document for full credit.

Characteristics of Functions

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Absolute Value

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15.

Vocabulary Review: Mark each statement as True or False.

  • False

  • True

  • The answer to the absolute value of 8 is -8.

  • The absolute value of -8 is -8, since -8 is 8 units from 0 on the number line.

  • The absolute value of -8 is 8, since -8 is 8 units from 0 on the number line.

  • According to the definition of absolute value, if |r|= 3, then r = 3 or r = -3.

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16.

The definition of absolute value is...

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Solving Absolute Value Equations

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19.

Solve this absolute Value equation:

|-2x+5|= 7

+ Case

- Case

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Compound Inequalities

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24.

Solve and graph the compound inequality for the given variable.

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25.

Solve and graph the compound inequality for the given variable.

or

Solving Absolute Value Inequalities

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26.

Solve and graph the inequality

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27.

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Graphing Absolute Value Functions

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30.

How is the absolute function below different than the parent function y=|x|:

y=-4|x-3|+2

Opens (Upward or Downward)

Horizontal Shift (write none if there is none)

Vertical Shift (write none if there is none)

Stretched (0<|a|<1), Compressed (|a|>1), or None .

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31.
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1.

Put the interval notations and graphs in the right category.

  • [3.5]

  • (3,5)

  • (-∞,-9)

  • [3,5)

  • [5,∞)

  • (3,5]

  • Open Interval

  • Closed Interval

  • Both

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2.

Describe the domain of this function.

In interval notation:

As an inequality:

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3.

Describe the range of this function.

In interval notation:

As an inequality:

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4.

Describe the domain of this function.

In interval notation:

As an inequality:

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5.

Describe the range of this function.

In interval notation:

As an inequality:

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6.

What intervals of x is the function f(x) increasing?

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7.

For what interval of x is the function f(x) decreasing?

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8.

For what interval of x is the function f(x) negative?

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9.

Name an interval of x is the function f(x) positive?

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10.

Write the following in interval notation. Use the little side keyboard to find infinity if you need it and type your answer.

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11.

Write the following in interval notation.

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12.

What is the domain of the function?

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13.

What is the range of the function?

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14.

Use the graph to create a function with the following features:

1) As x gets smaller; the function approaches negative infinity. x→ - ∞; f(x)→ -∞

2) As x gets larger; the function approaches negative infinity. x→ ∞; f(x)→ -∞

3) The graph of the function passes through the x-axis at -2.

4) The graph of the function passes though the y-axis at y=4

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17.

Find the absolute value of this expression:

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18.

Find the absolute value of this expression:

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20.

Solve this absolute Value equation:

|3x+6|=15

+ Case

- Case

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21.

Solve this absolute Value equation:

2|4x+6|=36

+ Case

- Case

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22.

Solve this absolute Value equation:

+ Case

- Case

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23.

Solve this absolute Value equation:

4|n - 2| – 3 = 25

+ Case

- Case

Solve and graph the inequality:

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28.

Solve and graph the inequality:

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29.

Solve and graph.

How is the absolute function below different than the parent function y=|x|:

Opens (Upward or Downward)

Horizontal Shift (write none if there is none)

Vertical Shift (write none if there is none)

Stretched (0<|a|<1), Compressed (|a|>1), or None .

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32.

1) What are the critical values of this absolute value function:

y=|x-3|+4

Opens (upward or downward)

Axis of Symmetry

Vertex

Slope

2) Use the critical values of this equation to graph it.

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33.

What are the critical values of this absolute value function:

y=2|x+4|- 2

Opens (upward or downward)

Axis of Symmetry

Vertex

Slope

2) Use the critical values of this equation to graph it.

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34.

What are the critical values of this absolute value function:

Opens (upward or downward)

Axis of Symmetry

Vertex

Slope

2) Use the critical values of this equation to graph it.