Do Now: Real World Application

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Do Now Real World Application

• 1.) You work 10 hours and earn 85. What is your
  earning rate?
• 2.) You travel 10 miles at an average speed of
  45mph. How many hours does the trip take?
• 3.) You drive 3 hours at 65 mph. How far did you
  drive?

2
Algebra II

• 1.1 Apply Properties of Real Numbers
• Summer Packets Must be turned in Monday.
• Quiz 1.1-1.4 next week Thursday

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Vocabulary

• Real numbers consist of rational and irrational
  numbers.
• A rational number is any number that can be
  written as a fraction. An irrational number
  cannot be written as a fraction.

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Vocabulary

• Terminating decimals and repeating decimals are
  rational. Decimals that have no pattern and do
  not end are irrational.
• Two subsets of rational numbers are
• whole numbers (0, 1, 2, 3, 4) and
  integers (-3, -2, -1, 0, 1, 2, 3).

5
Inverse Operations

• What are inverse operations? Give examples.

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Reciprocal

• What is a reciprocal? When is it used?

7
Convert the rate

• 1.) 350 feet to yards
• 2.) 7 quarts to gallons note
• 
  4qt 1 gal

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Convert the rate

• 3.) 20 mi/h to feet per second
• 4.) 50 km/h to miles per hour note approx.
• 
  1.61 miles 1 km

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Algebra II

• 1.2 Evaluate and Simplify Algebraic Expressions

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• What is an expression?
• What is a variable?
• What is a power? What are the two parts of a
  power?

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• What is a coefficient?
• Give an example of like terms.
• Give an examples of terms that are not like terms.

12
Evaluate the power.

• 1.) 5.)
• 2.) 6.)
• 3.) 7.)
• 4.) 8.)

13
Simplify the expression

• 1.) -9x 4x 5
• 2.) -15x 7 10 20x
• 3.) 7(x 3) 4(x 5)

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Simplify the expression

• 4.)
• 5.)

15
Evaluate the expression for the given value of
the variable.

• 1.) -10x 15 when x 2
• 2.) 5j 3j(5) when j 10

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Evaluate the expression for the given value of
the variable.

• 3.) when m 6
• 4.) when x -1