Graph of y=x^(1/3) and y= -2x^(1/2)

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SUMMARY

The discussion focuses on the techniques for sketching the graphs of the functions y=x^(1/3) and y=-2x^(1/2). The user seeks guidance on the proper procedure for graphing these functions, acknowledging their familiarity with the general shapes. Key insights include selecting specific x-values such as 0, 1, and -1 to plot points and understanding that the graph of y=-2x^(1/2) is a vertical stretch by a factor of 2 followed by a reflection across the x-axis.

PREREQUISITES
  • Understanding of cubic and square root functions
  • Knowledge of transformations of functions (stretching and reflecting)
  • Ability to plot points on a Cartesian coordinate system
  • Familiarity with basic graphing techniques
NEXT STEPS
  • Study the properties of cubic functions, specifically y=x^(1/3)
  • Learn about the transformations of square root functions, focusing on y=x^(1/2)
  • Explore graphing techniques for piecewise functions
  • Practice sketching graphs of transformed functions using different coefficients
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Students studying algebra or precalculus, educators teaching graphing techniques, and anyone interested in understanding function transformations and their graphical representations.

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Homework Statement



What is the procedure or hints of sketching this type of graph (i.e. y=x^(1/3) and y= -2x^(1/2) )? I know how it looks like but i had no ideas what is the proper procedure or technique of sketching them. Please help...

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The Attempt at a Solution



I tried but i really don't know how to do...
 
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choose some x values, for example 0,1, and -1, and then, since you know the general shape of the functions, draw an approximation of the lines.
 
For the second one, presumably you know the shape of y = x^(1/2). Relative to this graph, the graph of -2x^(1/2) is stretched away from the x-axis by a factor of 2 and then reflected across the x-axis.
 

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