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anonymous

  • one year ago

y = - x2 + 1 and y = x2. At which approximate points are the two equations equal?

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  1. MrNood
    • one year ago
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    \[y= -x ^{2}+1\] \[y= x ^{2}\] when they are equal: \[-x ^{2} + 1 = x ^{2}\] solve for x remember +/- the sqrt

  2. anonymous
    • one year ago
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    Wait what?? I'm confused.

  3. MrNood
    • one year ago
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    you are given 2 equations for y when they are equal you can set the 2 expressions (in x) equal: when they are equal: \[-x ^{2}+1 = x ^{2}\] So you can find the values fro x where this is true

  4. anonymous
    • one year ago
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    sorry comp sut down....

  5. MrNood
    • one year ago
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    |dw:1434641202660:dw| the 2 graphs are shown in sketch they are equal where they intersect solve the equation in my last post to find the 2 x values where they intersect

  6. anonymous
    • one year ago
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    thanks

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