Functions Pre-Assessment

Which table represents the following rule:

y equals three times x minus four

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Which of the following relations is a function?

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1. What value of x would make the given relation a function?

{(-2,4),  (8,1),  (x,-3), (5,6)}

• -2

• 5

• 6

• 8

Given the relation shown in the table, select all the correct statements.

• The relation is a function.

• The domain is:  {-3,0,2,4,9}

• The domain is:  {2,3}

• The range is:  {-3,0,2,4,9}

• The range is: {2,3}

What is the domain of the relation shown on the graph?

• 1. {-2,-1,1,2,4}

• 2. {2,3,4,5}

• 3. {-2,-1,1,2,3,4,5}

What is the range of the relation shown on the graph?

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An x-intercept is the point where a graph crosses the x-axis.  Which of the following functions has an x-intercept at (3,0)?  Select all that apply

• y=3x-6

• 3x-6y=3

• y= -2x+6

• 2x+3y=0

• 9x-y=27

The function y= -2x+4 is shown on the graph. Use the graph to select all correct statements.

• X-intercept: (2,0)

• X-intercept:  (0,2)

• Y-intercept: (4,0)

• Y-intercept: (0,4)

The function y= -2x+4 is shown on the graph. Use the graph to select all correct statements.

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Which of the following best describes a function?

• 1. A function is a relation in which each input has exactly one output.

• 1. A function is a relation in which each output has exactly one input.

• 1. A function is a point where the graph crosses the x-axis.

• 1. A function is a point where the graph crosses the y-axis.