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anonymous

  • 4 years ago

Sketch a graph of y=x^2+1

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  1. anonymous
    • 4 years ago
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    |dw:1328085388127:dw|

  2. anonymous
    • 4 years ago
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    Could you explain the equation please ?

  3. anonymous
    • 4 years ago
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    Does it need analyse ?

  4. anonymous
    • 4 years ago
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    The equation is x^2 which means the parabola. The only difference is that because it adds one, the whole graph shifts up by one.

  5. anonymous
    • 4 years ago
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    |dw:1328085979490:dw|

  6. anonymous
    • 4 years ago
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    http://www.wolframalpha.com/input/?i=++y%3Dx%5E2%2B1

  7. anonymous
    • 4 years ago
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    Plot attached.

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  8. anonymous
    • 4 years ago
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    \[y=x ^{2}+1\] means that it's a U-shaped curve because a>0. it's a positive function. at y-axis, x = 0. therefore, y-intercept = (0,1). at x-axis, y = 0. \[x ^{2}+1=0\] \[x ^{2}=-1\] but u cant square root a negative number.. it gives u a complex root. hence there're no real roots. so the graph does not intersect the x-axis.

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