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How is the graph of \(y=x^3-1\) obtained from the graph of \(y=x^3\)?

Answer and explanation

Correct answer: By shifting it down by 1 unit

In \(y=x^3-1\), 1 is subtracted from every value of \(y=x^3\). Thus each \(y\)-coordinate decreases by 1, so the entire graph shifts 1 unit downward. In contrast, \(y=(x-1)^3\) would shift the graph 1 unit to the right. Exam tip: a constant added or subtracted outside the function causes a vertical shift, whereas a change inside the input causes a horizontal shift.

Related tags

GraphsTransformationsCubic FunctionsVertical ShiftsGraphs Of Standard FunctionsRelations And FunctionsMathematicsClass 11 Mcq

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