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How is the graph y = -x^3 obtained from y = x^3?

Answer and explanation

Correct answer: Reflection in the x-axis

A transformation applied outside a function changes its output values. Starting with y=x^3, replacing y by -y gives y=-x^3, so every point (x,y) is mapped to (x,-y). This reverses the sign of every vertical coordinate while leaving x unchanged, which is precisely reflection in the x-axis. Therefore option A is correct. Reflection in the y-axis would replace x by -x and produce y=(-x)^3=-x^3 as well for this particular odd function, but the direct transformation shown by the outside negative sign is an x-axis reflection; the question asks how the displayed expression is obtained. A shift would alter coordinates by a constant and cannot account for the sign reversal.

Related tags

Graph-TransformationsCubic-FunctionsReflectionGraphs Of Standard FunctionsRelations And FunctionsMathematicsClass 11 Mcq

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