Algebra 1 Quiz - Sections 4.1 - 4.4 "Relations & Functions"

Choose the graph that best represents each situation:

A person bungee jumps from a high platform.

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Choose the graph that best represents each situation:

A person jumps on a trampoline in a steady motion.

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Xander takes a quiz worth 100 points. Each question is worth 20 points. Sketch a graph to show his possible score if he misses 1, 2, 3, 4, or 5 questions.

Give the domain and range of each relation. Tell whether the relation is a function:

• Domain: 2,3,4

  Range: -1,0,1

  Yes, it is a function

• Domain: -1, 2, 3

  Range: 0, 1, 4

  No, it is not a function

• Domain: -1, 0, 1

  Range: 2, 3, 4, 4

  No, it is not a function

• Domain: -1, 4, 1, 0

  Range: 2, 3, -1

  Yes, it is a function

• Domain: -2, 0, 2

  Range: 3, 3, 3, 3, 3

  Yes, it is a function

• Domain: 3, 3, 3, 3, 3

  Range: -2, 0, 2

  Yes, it is a function

• Domain: -2, 0, 2

  Range: 3, 3, 3, 3, 3

  No, it is not a function

• Domain: 3, 3, 3, 3, 3

  Range: -2, 0, 2

  No, it is not a function

Give the domain and range of each relation. Tell whether the relation is a function.

Determine a relationship between the x and y values. Write an equation.

• The value of y is 7 less than x ; y = x - 7.

• The value of y is 7 more than x ; y = x - 7.

• The value of y is -7 less than x ; y = x - 7.

• The value of y is -7 more than x ; y = x - 7.

Determine a relationship between the x and y values. Write an equation.

• The value of y is 3 times the value of x ; y = 3x.

• The value of y is -3 times the value of x ; y = -3x.

• The value of y is -1/2 times the value of x ; y = -1/2 x.

• The value of y is 1/2 times the value of x ; y = 1/2 x

A printer can print 8 pages per minute. Write a rule in function notation.

• f(x) = 8x

• f(x) = 8 + x

• f(x) = x - 8

• f(x) = 8/x

Evaluate each function for the given input values:

For f(x) = 3x - 1, find f(x) when x = 2.

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