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anonymous

  • 4 years ago

what is the domain and range of the equation Y=X^3 + 2 and also determine whether Y is a function of X

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  1. anonymous
    • 4 years ago
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    domain and range are all real numbers, y is a function of x since for every x there is a y value

  2. anonymous
    • 4 years ago
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    i'm told to plot a graph and get the domain and range of the equation

  3. anonymous
    • 4 years ago
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    \[f(x) = x^3 + 2\] is in fact a continuously differentiable function on \[\mathbb{R}.\]

  4. anonymous
    • 4 years ago
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    my calculator already did the graphing but i dont know which is the domain or range

  5. campbell_st
    • 4 years ago
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    graph it|dw:1327462207763:dw| does it pass the vertical line test for a function.. that is will a vertical line only cut the curve once... look at the graph... what values of x can you put in.... this gives the domain... what values of y do you get as output.... Domain: all real x Range: all real y, the curve is continuous and a function

  6. anonymous
    • 4 years ago
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    The graph is just that of x^3 but shifted 2 units up the y-axis, and you can't 'get the domain and range' unless you like drawing forever and ever and ever...

  7. anonymous
    • 4 years ago
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    |dw:1327462552362:dw|

  8. anonymous
    • 4 years ago
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    \[f : \mathbb{R} \longrightarrow \mathbb{R}\] i.e. f maps the reals into itself

  9. anonymous
    • 4 years ago
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    campbell_st had the right looking graph

  10. anonymous
    • 4 years ago
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    he's got the wrong graph that why i drew the right one

  11. anonymous
    • 4 years ago
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    i need your help guys

  12. anonymous
    • 4 years ago
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    he has the right graph. Do you know what the graph of x^3 looks like? It has two turning points, comes up from negative infinity in the lower left quadrant, turns to hit zero, and as it enters the upper right quadrant it turns again to go off to positive infinity. Adding any scalar constant will just translate the graph up or down, depending on the sign of the constant.

  13. anonymous
    • 4 years ago
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    oh i see..buh what the domain and range is Ya function of x

  14. campbell_st
    • 4 years ago
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    domain is what x values can you put in.... the range is what y values you get when you substitute an x value...

  15. anonymous
    • 4 years ago
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    is Y a function of x? according to the graph?

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