The graph is
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The x–coordinates represent the inputs and the y–coordinates represent the outputs. Make a table for the graph.
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x \ | \
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y \ | \
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1 \ | \
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0 \ | \
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2 \ | \
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2 \ | \
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3 \ | \
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4 \ | \
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4 \ | \
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6 \ | \
Express the relation as ordered pairs. 
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x \ | \
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\ y = 2x - 2 \ \ \ | \
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y \ | \
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1 \ | \
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0 \ | \
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2 \ | \
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2 \ | \
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3 \ | \
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4 \ | \
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4 \ | \
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6 \ | \
The function is
x - Coordinates of function are called domain.So domain is 
Y - Coordinates of function are called range.So range is 
The rule for the function is
Domain is 
Range is 