Answers Algebra IIModeling with Functions

Modeling with Functions — Test Answers

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Which rules define the graphed function?

y is equal to x ; x is equal to 5

y is equal to x plus 2 ; x is equal to 5

y is equal to x plus 2 ; y is equal to 5

y is equal to x ; y is equal to 5

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Which equation represents the data in the graph?

y is equal to x squared minus 8 x plus 16

y is equal to x squared plus 4 x plus 4

y is equal to 5 point 5 x squared minus 0 point 5 x plus 4

y is equal to 2 point 5 x squared minus 0 point 5 x plus 4

For which x -values is the graph discontinuous?

start set dot dot dot minus 4 comma negative 2 comma 0 comma 2 comma 4 comma dot dot dot end set

start set dot dot dot minus 3 comma negative 1 comma 1 comma 3 comma dot dot dot end set

start set dot dot dot minus 3 comma negative 1 comma 0 comma 1 comma 3 comma dot dot dot end set

start set dot dot dot minus 3 comma negative 2 comma negative 1 comma 0 comma 1 comma 2 comma 3 comma dot dot dot end set

What are the domain and range of the step function?

domain = {all real numbers}, range is equal to dot dot dot minus 4 comma negative 1 comma 2 comma 5 comma dot dot dot

domain is equal to dot dot dot minus 5 comma negative 2 comma 1 comma 4 comma dot dot dot , range is equal to dot dot dot minus 4 comma negative 1 comma 2 comma 5 comma dot dot dot

domain = {all integers}, range = {all real numbers}

domain = {all real numbers}, range = {all real numbers}

What is the vertex of the absolute value function?

open paren 1 comma 4 close paren

open paren 4 comma 1 close paren

open paren 1 comma negative 4 close paren

open paren 4 comma negative 1 close paren

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Modeling with Functions — Test Answers

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